debug start error java.lang.NullPointerException

[wengieeee]

2021-12-30T14:17:35.510+0800 DEBUG main com.facebook.presto.server.PluginManager /Users/x/projects/IdeaProjects/presto/presto-function-namespace-managers/target/classes
2021-12-30T14:17:35.526+0800 INFO main com.facebook.presto.server.PluginManager Installing com.facebook.presto.functionNamespace.FunctionNamespaceManagerPlugin
2021-12-30T14:17:35.536+0800 INFO main com.facebook.presto.server.PluginManager Registering function namespace manager mysql
2021-12-30T14:17:35.537+0800 INFO main com.facebook.presto.server.PluginManager -- Finished loading plugin ../presto-function-namespace-managers/pom.xml --
2021-12-30T14:17:35.537+0800 INFO main com.facebook.presto.server.PluginManager -- Loading plugin ../presto-druid/pom.xml --
2021-12-30T14:17:35.537+0800 DEBUG main com.facebook.presto.server.PluginManager /Users/x/projects/IdeaProjects/presto/presto-main/../presto-druid/pom.xml
2021-12-30T14:17:42.334+0800 ERROR main com.facebook.presto.server.PrestoServer null
java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:877)
at com.google.common.collect.ImmutableList$Builder.add(ImmutableList.java:788)
at com.google.common.collect.ImmutableList$Builder.add(ImmutableList.java:750)
at com.google.common.collect.ImmutableCollection$Builder.addAll(ImmutableCollection.java:416)
at com.google.common.collect.ImmutableList$Builder.addAll(ImmutableList.java:835)
at io.airlift.resolver.ArtifactResolver.resolvePom(ArtifactResolver.java:175)
at com.facebook.presto.server.PluginManager.buildClassLoaderFromPom(PluginManager.java:309)
at com.facebook.presto.server.PluginManager.buildClassLoader(PluginManager.java:297)
at com.facebook.presto.server.PluginManager.loadPlugin(PluginManager.java:188)
at com.facebook.presto.server.PluginManager.loadPlugins(PluginManager.java:176)
at com.facebook.presto.server.PrestoServer.run(PrestoServer.java:145)
at com.facebook.presto.server.PrestoServer.main(PrestoServer.java:85)

i didn't change any code and config, just git clone project and run

[agrawalreetika]

@Yanwenjingcn I tried presto build from the master with default configs and started presto server. It's running fine for me.
I see for you Error is while loading the druid plugin.
If you are trying to start server from IDE & you are not using the druid plugin, then can you try

1. commenting/removing below line from config.properties
   ../presto-druid/pom.xml,\
2. Remove druid.properties

Then try to build and restart your server.

[pratyakshsharma]

@wengieeee are you still facing issues? Can we close this?