Exception when trying to use Ammonite REPL

[jchayat]

// build.sbt

name := "test-repl"

version := "1.0"

scalaVersion := "2.11.5"

libraryDependencies += "com.lihaoyi" %% "ammonite" % "0.1.6"

libraryDependencies += "com.lihaoyi" %% "ammonite-repl" % "0.1.6"

initialCommands in console := "ammonite.repl.Repl.main(null)"

#Command Line

jon$ sbt console
[info] Loading project definition from /Users/jon/code/test-repl/project
[info] Set current project to test-repl (in build file:/Users/jon/code/test-repl/)
[info] Starting scala interpreter...
[info] 
java.lang.AbstractMethodError
  at scala.tools.nsc.backend.JavaPlatform$class.$init$(JavaPlatform.scala:22)
  at ammonite.repl.interp.Compiler$$anon$1$$anon$6.<init>(Compiler.scala:70)
  at ammonite.repl.interp.Compiler$$anon$1.platform$lzycompute(Compiler.scala:70)
  at ammonite.repl.interp.Compiler$$anon$1.platform(Compiler.scala:70)
  at scala.tools.nsc.interactive.Global$$anon$8.<init>(Global.scala:401)
  at scala.tools.nsc.interactive.Global.loaders$lzycompute(Global.scala:399)
  at scala.tools.nsc.interactive.Global.loaders(Global.scala:399)
  at scala.tools.nsc.Global$GlobalMirror.rootLoader(Global.scala:65)
  at scala.reflect.internal.Mirrors$Roots$RootClass.<init>(Mirrors.scala:307)
  at scala.reflect.internal.Mirrors$Roots.RootClass$lzycompute(Mirrors.scala:321)
  at scala.reflect.internal.Mirrors$Roots.RootClass(Mirrors.scala:321)
  at scala.reflect.internal.Mirrors$Roots$EmptyPackageClass.<init>(Mirrors.scala:330)
  at scala.reflect.internal.Mirrors$Roots.EmptyPackageClass$lzycompute(Mirrors.scala:336)
  at scala.reflect.internal.Mirrors$Roots.EmptyPackageClass(Mirrors.scala:336)
  at scala.reflect.internal.Mirrors$Roots.EmptyPackageClass(Mirrors.scala:276)
  at scala.reflect.internal.Mirrors$RootsBase.init(Mirrors.scala:250)
  at scala.tools.nsc.Global.rootMirror$lzycompute(Global.scala:74)
  at scala.tools.nsc.Global.rootMirror(Global.scala:72)
  at scala.tools.nsc.Global.rootMirror(Global.scala:40)
  at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass$lzycompute(Definitions.scala:257)
  at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass(Definitions.scala:257)
  at scala.reflect.internal.Definitions$DefinitionsClass.init(Definitions.scala:1391)
  at scala.tools.nsc.Global$Run.<init>(Global.scala:1216)
  at scala.tools.nsc.interactive.Global$TyperRun.<init>(Global.scala:1208)
  at scala.tools.nsc.interactive.Global.newTyperRun(Global.scala:1231)
  at scala.tools.nsc.interactive.Global.<init>(Global.scala:297)
  at ammonite.repl.interp.Compiler$$anon$1.<init>(Compiler.scala:68)
  at ammonite.repl.interp.Compiler.<init>(Compiler.scala:68)
  at ammonite.repl.interp.Interpreter.init(Interpreter.scala:23)
  at ammonite.repl.interp.Interpreter.<init>(Interpreter.scala:55)
  at ammonite.repl.Repl.<init>(Repl.scala:11)
  at ammonite.repl.Repl$.main(Repl.scala:73)
  ... 39 elided
Welcome to Scala version 2.11.5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_25).
Type in expressions to have them evaluated.
Type :help for more information.

scala> 

[lihaoyi]

Hmm try scala 2.11.4 or Java 8? Those are the things that come to mind

[jchayat]

Yes, It works on 2.11.4

Does it work on 2.10.4? I had a resolution problem.

[lihaoyi]

Doesn't work with 2.10.4

[lihaoyi]

Maybe at some point I'll cross publish; for now 2.11.4 it is ^_^

[jarandaf]

I also experience this issue, scala version is 2.11.4 and java version is 1.8.0_25.

[lihaoyi]

@jchayat @jarandaf The latest version is cross-published, the older ones don't. Have you tried that?

[alexarchambault]

@jarandaf @lihaoyi Binary incompatibilities in the scala-compiler JAR are quite common, I ran into one between 2.10.4/2.10.5 (macro related methods that changed), there are also some in 2.11 (2.11.2 vs 2.11.4 or 5 for sure, ran into it with the spark repl jar). Using the exact same version as ammonite should be recommended.

[lihaoyi]

@alexarchambault should we cross-publish Ammonite against different minor versions of Scala? How does one even do that? Presumably it's possible

[alexarchambault]

@lihaoyi shapeless is doing it with scala 2.10 (see https://github.com/milessabin/shapeless#shapeless-210), but it's cumbersome for its users. I'm really shared about this (I'll let you decide anyway!) You could just recommend to use the latest scala version.

[alexarchambault]

To go the cross publishing route, it should just be a matter of adding

crossVersion := CrossVersion.full

crossScalaVersions := (0 to 5).filterNot(3.==).map("2.11." + _) ++ ...

in build.sbt, and for the users, use

"com.lihaoyi" %% "ammonite-..." % "..." cross CrossVersion.full

as a dependency instead of just

"com.lihaoyi" %% "ammonite-..." % "..."

(after-thought: not that cumbersome)

[jarandaf]

Using same scala version as Ammonite seems to solve the problem (or at least, the REPL starts). I am facing another problem now (see #35), probably not directly related.

[lihaoyi]

Fixed in 0.2.8