The world just stops and ticks infinitely. Crash report says its Streams.

[BlueYoshi68]

This is what the report says.
java.lang.Error: ServerHangWatchdog detected that a single server tick took 300.00 seconds (should be max 0.05) at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:80) at farseek.world.gen.structure.StructureGenerationBlockAccess.chunkAt(StructureGenerationBlockAccess.scala:17) at farseek.world.ChunkAccess$class.getBlock(BlockAccess.scala:73) at farseek.world.gen.structure.StructureGenerationBlockAccess.getBlock(StructureGenerationBlockAccess.scala:8) at farseek.world.BlockAccess$class.getBlockState(BlockAccess.scala:38) at farseek.world.gen.structure.StructureGenerationBlockAccess.func_180495_p(StructureGenerationBlockAccess.scala:8) at farseek.world.package$IBlockAccessValue$.getBlock$extension(package.scala:208) at farseek.world.package$$anonfun$blockOptionAt$1.apply(package.scala:94) at farseek.world.package$$anonfun$blockOptionAt$1.apply(package.scala:94) at scala.Option.flatMap(Option.scala:170) at farseek.world.package$.blockOptionAt(package.scala:94) at farseek.world.package$.blockAt(package.scala:96) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$setMaxSurfaceLevels$1$$anonfun$apply$mcVI$sp$1.apply$mcVI$sp(RiverUpstreamComponent.scala:96) at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$setMaxSurfaceLevels$1.apply$mcVI$sp(RiverUpstreamComponent.scala:95) at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160) at streams.world.gen.structure.RiverUpstreamComponent.setMaxSurfaceLevels(RiverUpstreamComponent.scala:93) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$3.apply(RiverUpstreamComponent.scala:35) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$3.apply(RiverUpstreamComponent.scala:35) at scala.collection.TraversableLike$$anonfun$filterImpl$1.apply(TraversableLike.scala:259) at scala.collection.immutable.List.foreach(List.scala:383) at scala.collection.TraversableLike$class.filterImpl(TraversableLike.scala:258) at scala.collection.TraversableLike$class.filter(TraversableLike.scala:270) at scala.collection.AbstractTraversable.filter(Traversable.scala:104) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:34) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:41) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1$$anonfun$apply$4.apply(RiverUpstreamComponent.scala:40) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:40) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:38) at streams.world.gen.structure.RiverUpstreamComponent$$anonfun$addUpstream$1.apply(RiverUpstreamComponent.scala:36) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverUpstreamComponent.addUpstream(RiverUpstreamComponent.scala:36) at streams.world.gen.structure.RiverMouthComponent$$anonfun$addUpstream$1.apply(RiverMouthComponent.scala:50) at streams.world.gen.structure.RiverMouthComponent$$anonfun$addUpstream$1.apply(RiverMouthComponent.scala:48) at scala.Option.foreach(Option.scala:245) at streams.world.gen.structure.RiverMouthComponent.addUpstream(RiverMouthComponent.scala:48) at streams.world.gen.structure.RiverStructure.streams$world$gen$structure$RiverStructure$$createMouth(RiverStructure.scala:42) at streams.world.gen.structure.RiverStructure$$anonfun$generate$1$$anonfun$apply$4.apply$mcVI$sp(RiverStructure.scala:35) at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160) at streams.world.gen.structure.RiverStructure$$anonfun$generate$1.apply(RiverStructure.scala:35) at streams.world.gen.structure.RiverStructure$$anonfun$generate$1.apply(RiverStructure.scala:31) at scala.collection.immutable.List.foreach(List.scala:383) at streams.world.gen.structure.RiverStructure.generate(RiverStructure.scala:31) at streams.world.gen.structure.RiverGenerator$$anonfun$1.apply(RiverGenerator.scala:34) at streams.world.gen.structure.RiverGenerator$$anonfun$1.apply(RiverGenerator.scala:33) at scala.Option.flatMap(Option.scala:170) at streams.world.gen.structure.RiverGenerator.generate(RiverGenerator.scala:33) at farseek.world.gen.structure.StructureGenerator.onChunkGeneration(StructureGenerator.scala:46) at farseek.world.gen.structure.StructureGenerator.onChunkGeneration(StructureGenerator.scala:37) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1033_StructureGenerator_onChunkGeneration_ReplaceBiomeBlocks.invoke(.dynamic) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) at farseek.world.gen.OtgHook$.generateTerrain(OtgHook.scala:19) at farseek.world.gen.OtgHook.generateTerrain(OtgHook.scala) at com.pg85.otg.generator.ChunkProviderOTG.generate(ChunkProviderOTG.java:130) at com.pg85.otg.forge.generator.OTGChunkGenerator.getBlocks(OTGChunkGenerator.java:583) at com.pg85.otg.forge.generator.OTGChunkGenerator.func_185932_a(OTGChunkGenerator.java:129) at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:143) at com.pg85.otg.forge.generator.Pregenerator.PreGenerateChunk(Pregenerator.java:381) at com.pg85.otg.forge.generator.Pregenerator.Pregenerate(Pregenerator.java:200) at com.pg85.otg.forge.generator.Pregenerator.ProcessTick(Pregenerator.java:142) at com.pg85.otg.forge.ForgeEngine.ProcessPregeneratorTick(ForgeEngine.java:44) at com.pg85.otg.forge.events.ServerEventListener.onServerTick(ServerEventListener.java:593) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1088_ServerEventListener_onServerTick_ServerTickEvent.invoke(.dynamic) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) at net.minecraftforge.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:266) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:712) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) at java.lang.Thread.run(Thread.java:748)

[delvr]

Sorry for the very long delay on this one. I'm still not certain of the root cause, but I've just released Farseek 2.4 with an optimization to Farseek/Streams chunk generation that may prevent these infinite-generation issues. Please give it a try and let me know if it improves anything. (Or if it breaks with a different error). Thanks!

[delvr]

The recently-released Streams 0.4.8 should fix these timeouts in most cases, please give it a try and let me know if it still happens for you. Thanks!