Starter on building RM extensions, don't know how to setup.

Haoyang

Hi,
I am a starter on building RM extensions, I found the documentation and GitHub repo of the template.
I am having trouble with the eclipse and gradle.
I followed the documentation to open the project in eclipse and want to install gradle in eclipse but only got grade 3.8.X and failed to build.
I also tried to use a terminal to run ./gradlew initializeExtensionProject but also got 'Build Failed'

Can anyone help out of this? I am really frustrated and I just don't know what is happening.

FAILURE: Build failed with an exception. * Where: Build file '/Users/haoyangchen/Desktop/ChenHaoyang/coding/Eclipse/rapidminer-extension-template/build.gradle' * What went wrong: Could not compile build file '/Users/haoyangchen/Desktop/ChenHaoyang/coding/Eclipse/rapidminer-extension-template/build.gradle'. > startup failed: General error during semantic analysis: Unsupported class file major version 62 java.lang.IllegalArgumentException: Unsupported class file major version 62 at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:196) at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:177) at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:163) at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:284) at org.codehaus.groovy.ast.decompiled.AsmDecompiler.parseClass(AsmDecompiler.java:81) at org.codehaus.groovy.control.ClassNodeResolver.findDecompiled(ClassNodeResolver.java:251) at org.codehaus.groovy.control.ClassNodeResolver.tryAsLoaderClassOrScript(ClassNodeResolver.java:189) at org.codehaus.groovy.control.ClassNodeResolver.findClassNode(ClassNodeResolver.java:169) at org.codehaus.groovy.control.ClassNodeResolver.resolveName(ClassNodeResolver.java:125) at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveClassNullable(AsmReferenceResolver.java:57) at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveClass(AsmReferenceResolver.java:44) at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveNonArrayType(AsmReferenceResolver.java:79) at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveType(AsmReferenceResolver.java:70) at org.codehaus.groovy.ast.decompiled.MemberSignatureParser.createMethodNode(MemberSignatureParser.java:57) at org.codehaus.groovy.ast.decompiled.DecompiledClassNode$2.get(DecompiledClassNode.java:234) at org.codehaus.groovy.ast.decompiled.DecompiledClassNode$2.get(DecompiledClassNode.java:231) at org.codehaus.groovy.ast.decompiled.DecompiledClassNode.createMethodNode(DecompiledClassNode.java:242) at org.codehaus.groovy.ast.decompiled.DecompiledClassNode.lazyInitMembers(DecompiledClassNode.java:199) at org.codehaus.groovy.ast.decompiled.DecompiledClassNode.getDeclaredMethods(DecompiledClassNode.java:122) at org.codehaus.groovy.ast.ClassNode.getMethods(ClassNode.java:912) at org.codehaus.groovy.ast.ClassNode.tryFindPossibleMethod(ClassNode.java:1280) at org.codehaus.groovy.control.StaticImportVisitor.transformMethodCallExpression(StaticImportVisitor.java:252) at org.codehaus.groovy.control.StaticImportVisitor.transform(StaticImportVisitor.java:113) at org.codehaus.groovy.ast.ClassCodeExpressionTransformer.visitExpressionStatement(ClassCodeExpressionTransformer.java:142) at org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:40) at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:110) at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:121) at org.codehaus.groovy.ast.ClassCodeExpressionTransformer.visitConstructorOrMethod(ClassCodeExpressionTransformer.java:53) at org.codehaus.groovy.control.StaticImportVisitor.visitConstructorOrMethod(StaticImportVisitor.java:89) at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructor(ClassCodeVisitorSupport.java:128) at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1099) at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:54) at org.codehaus.groovy.control.StaticImportVisitor.visitClass(StaticImportVisitor.java:83) at org.codehaus.groovy.control.CompilationUnit$14.call(CompilationUnit.java:708) at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1084) at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:640) at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:618) at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:595) at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:401) at groovy.lang.GroovyClassLoader.access$300(GroovyClassLoader.java:89) at groovy.lang.GroovyClassLoader$5.provide(GroovyClassLoader.java:341) at groovy.lang.GroovyClassLoader$5.provide(GroovyClassLoader.java:338) at org.codehaus.groovy.runtime.memoize.ConcurrentCommonCache.getAndPut(ConcurrentCommonCache.java:147) at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:336) at org.gradle.groovy.scripts.internal.DefaultScriptCompilationHandler.compileScript(DefaultScriptCompilationHandler.java:139) at org.gradle.groovy.scripts.internal.DefaultScriptCompilationHandler.compileToDir(DefaultScriptCompilationHandler.java:95) at org.gradle.groovy.scripts.internal.BuildOperationBackedScriptCompilationHandler$2.run(BuildOperationBackedScriptCompilationHandler.java:54) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56) at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71) at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45) at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71) at org.gradle.groovy.scripts.internal.BuildOperationBackedScriptCompilationHandler.compileToDir(BuildOperationBackedScriptCompilationHandler.java:51) at org.gradle.groovy.scripts.internal.FileCacheBackedScriptClassCompiler$CompileToCrossBuildCacheAction.execute(FileCacheBackedScriptClassCompiler.java:190) at org.gradle.groovy.scripts.internal.FileCacheBackedScriptClassCompiler$CompileToCrossBuildCacheAction.execute(FileCacheBackedScriptClassCompiler.java:170) at org.gradle.groovy.scripts.internal.FileCacheBackedScriptClassCompiler$ProgressReportingInitializer.execute(FileCacheBackedScriptClassCompiler.java:211) at org.gradle.groovy.scripts.internal.FileCacheBackedScriptClassCompiler$ProgressReportingInitializer.execute(FileCacheBackedScriptClassCompiler.java:194) at org.gradle.cache.internal.DefaultPersistentDirectoryCache$Initializer.initialize(DefaultPersistentDirectoryCache.java:100) at org.gradle.cache.internal.FixedSharedModeCrossProcessCacheAccess$1.run(FixedSharedModeCrossProcessCacheAccess.java:86) at org.gradle.cache.internal.DefaultFileLockManager$DefaultFileLock.doWriteAction(DefaultFileLockManager.java:215) at org.gradle.cache.internal.DefaultFileLockManager$DefaultFileLock.writeFile(DefaultFileLockManager.java:205) at org.gradle.cache.internal.FixedSharedModeCrossProcessCacheAccess.open(FixedSharedModeCrossProcessCacheAccess.java:83) at org.gradle.cache.internal.DefaultCacheAccess.open(DefaultCacheAccess.java:139) at org.gradle.cache.internal.DefaultPersistentDirectoryStore.open(DefaultPersistentDirectoryStore.java:89) at org.gradle.cache.internal.DefaultPersistentDirectoryStore.open(DefaultPersistentDirectoryStore.java:43) at org.gradle.cache.internal.DefaultCacheFactory.doOpen(DefaultCacheFactory.java:103) at org.gradle.cache.internal.DefaultCacheFactory.open(DefaultCacheFactory.java:68) at org.gradle.cache.internal.DefaultCacheRepository$PersistentCacheBuilder.open(DefaultCacheRepository.java:126) at org.gradle.groovy.scripts.internal.FileCacheBackedScriptClassCompiler.compile(FileCacheBackedScriptClassCompiler.java:116) at org.gradle.groovy.scripts.internal.CrossBuildInMemoryCachingScriptClassCache.getOrCompile(CrossBuildInMemoryCachingScriptClassCache.java:50) at org.gradle.groovy.scripts.internal.BuildScopeInMemoryCachingScriptClassCompiler.compile(BuildScopeInMemoryCachingScriptClassCompiler.java:50) at org.gradle.groovy.scripts.DefaultScriptCompilerFactory$ScriptCompilerImpl.compile(DefaultScriptCompilerFactory.java:49) at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:110) at org.gradle.configuration.BuildOperationScriptPlugin$1.run(BuildOperationScriptPlugin.java:65) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56) at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71) at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45) at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71) at org.gradle.configuration.BuildOperationScriptPlugin.lambda$apply$0(BuildOperationScriptPlugin.java:62) at org.gradle.configuration.internal.DefaultUserCodeApplicationContext.apply(DefaultUserCodeApplicationContext.java:43) at org.gradle.configuration.BuildOperationScriptPlugin.apply(BuildOperationScriptPlugin.java:62) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.lambda$applyToMutableState$0(DefaultProjectStateRegistry.java:250) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.fromMutableState(DefaultProjectStateRegistry.java:277) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.applyToMutableState(DefaultProjectStateRegistry.java:249) at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:42) at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:26) at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:35) at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject.lambda$run$0(LifecycleProjectEvaluator.java:100) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.lambda$applyToMutableState$0(DefaultProjectStateRegistry.java:250) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.lambda$withProjectLock$3(DefaultProjectStateRegistry.java:310) at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:213) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withProjectLock(DefaultProjectStateRegistry.java:310) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.fromMutableState(DefaultProjectStateRegistry.java:291) at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.applyToMutableState(DefaultProjectStateRegistry.java:249) at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject.run(LifecycleProjectEvaluator.java:91) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56) at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71) at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45) at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71) at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:63) at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:721) at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:151) at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:41) at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:67) at org.gradle.configuration.DefaultProjectsPreparer.prepareProjects(DefaultProjectsPreparer.java:46) at org.gradle.configuration.BuildTreePreparingProjectsPreparer.prepareProjects(BuildTreePreparingProjectsPreparer.java:56) at org.gradle.configuration.BuildOperationFiringProjectsPreparer$ConfigureBuild.run(BuildOperationFiringProjectsPreparer.java:52) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29) at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56) at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71) at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45) at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71) at org.gradle.configuration.BuildOperationFiringProjectsPreparer.prepareProjects(BuildOperationFiringProjectsPreparer.java:40) at org.gradle.initialization.DefaultGradleLauncher.prepareProjects(DefaultGradleLauncher.java:226) at org.gradle.initialization.DefaultGradleLauncher.doClassicBuildStages(DefaultGradleLauncher.java:163) at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:148) at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:124) at org.gradle.internal.invocation.GradleBuildController$1.create(GradleBuildController.java:72) at org.gradle.internal.invocation.GradleBuildController$1.create(GradleBuildController.java:67) at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:213) at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:67) at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:56) at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:31) at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) at org.gradle.launcher.exec.BuildOutcomeReportingBuildActionRunner.run(BuildOutcomeReportingBuildActionRunner.java:63) at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32) at org.gradle.tooling.internal.provider.FileSystemWatchingBuildActionRunner.run(FileSystemWatchingBuildActionRunner.java:77) at org.gradle.launcher.exec.BuildCompletionNotifyingBuildActionRunner.run(BuildCompletionNotifyingBuildActionRunner.java:41) at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:49) at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:44) at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200) at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75) at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153) at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68) at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62) at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76) at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54) at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76) at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:44) at org.gradle.launcher.exec.InProcessBuildActionExecuter.lambda$execute$0(InProcessBuildActionExecuter.java:54) at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:86) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:53) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:29) at org.gradle.launcher.exec.BuildTreeScopeLifecycleBuildActionExecuter.lambda$execute$0(BuildTreeScopeLifecycleBuildActionExecuter.java:33) at org.gradle.internal.buildtree.BuildTreeState.run(BuildTreeState.java:49) at org.gradle.launcher.exec.BuildTreeScopeLifecycleBuildActionExecuter.execute(BuildTreeScopeLifecycleBuildActionExecuter.java:32) at org.gradle.launcher.exec.BuildTreeScopeLifecycleBuildActionExecuter.execute(BuildTreeScopeLifecycleBuildActionExecuter.java:27) at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:104) at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:55) at org.gradle.tooling.internal.provider.SubscribableBuildActionExecuter.execute(SubscribableBuildActionExecuter.java:64) at org.gradle.tooling.internal.provider.SubscribableBuildActionExecuter.execute(Subscribable

MartinLiebig

Hi there,

looks like you compile it against the wrong java version? What JDK are you developing against?

BR,

Martin

Haoyang

Yes thank you, it is indeed the problem with gradle and JDK versions. I gave up eclipse and turned to IDEA and it is functioning well.