scala complier error
Error:scalac: Error: Could not initialize class org.jetbrains.jps.incremental.scala.data.HydraData$
java.lang.NoClassDefFoundError: Could not initialize class org.jetbrains.jps.incremental.scala.data.HydraData$
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$.getHydraVersion$1(CompilerFactoryImpl.scala:112)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$.getOrCompileInterfaceJar(CompilerFactoryImpl.scala:117)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.$anonfun$getScalac$1(CompilerFactoryImpl.scala:49)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl$$Lambda$34/1456490682.apply(Unknown Source)
at scala.Option.map(Option.scala:146)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.getScalac(CompilerFactoryImpl.scala:47)
at org.jetbrains.jps.incremental.scala.local.CompilerFactoryImpl.createCompiler(CompilerFactoryImpl.scala:25)
at org.jetbrains.jps.incremental.scala.local.CachingFactory.$anonfun$createCompiler$3(CachingFactory.scala:24)
at org.jetbrains.jps.incremental.scala.local.CachingFactory$$Lambda$21/996642728.apply(Unknown Source)
at org.jetbrains.jps.incremental.scala.local.Cache.$anonfun$getOrUpdate$2(Cache.scala:20)
at org.jetbrains.jps.incremental.scala.local.Cache$$Lambda$23/154590974.apply(Unknown Source)
at scala.Option.getOrElse(Option.scala:121)
at org.jetbrains.jps.incremental.scala.local.Cache.getOrUpdate(Cache.scala:19)
at org.jetbrains.jps.incremental.scala.local.CachingFactory.createCompiler(CachingFactory.scala:24)
at org.jetbrains.jps.incremental.scala.local.LocalServer.compile(LocalServer.scala:22)
at org.jetbrains.jps.incremental.scala.remote.Main$.make(Main.scala:68)
at org.jetbrains.jps.incremental.scala.remote.Main$.nailMain(Main.scala:25)
at org.jetbrains.jps.incremental.scala.remote.Main.nailMain(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.martiansoftware.nailgun.NGSession.run(NGSession.java:319)
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Try deleting IDE caches and plugins directories, then complete re-install from https://www.jetbrains.com/idea/download and install the Scala plugin.
It doesn't work . Which progress is wrong， jdk 1.8 + scala 2.12.4
I deleted IDE caches and plugins, and changed my idea to previous version (2017.3 -> 2017.1) , it works.
thanks a lot, Andrey Dernov
I am using latest version of Idea (after deleting all logs and caches as indicated by Andrey), installed corresponding scala plugin, however, everytime I compiled the source code, only class files of java code can be generated rather than scala code, and raises the same erorr.
Can anyone help ?
What Scala version do you use? Do you use external compiler server in Settings(Preferences on Mac) | Build, Execution, Deployment | Compiler | Scala Compiler | Scala Compile Server settings? Try specifying different JDK version for the JVM SDK option in that settings.
FYI I had a similar issue. I managed to fix the build with the following steps
- Go to Settings(Preferences on Mac) | Build, Execution, Deployment | Compiler | Scala Compiler | Scala Compile Server settings
- Select the related sbt build
- Remove any sbt options from the "Additional compiler options"
Scala plugin version v2018.3.779 / IntelliJ Ultimate 2018.3 on Mac OS