Develop Reference

Android Databinding V2 fails for multi-module project

I have a multi-module Android project, with Kotlin, databinding v2, under Android Studio 3.1.3. Most of my databinding-enabled layouts are enclosed in library modules, which the final application module aggregates.
Problem starts when I want to add new layout in my application module, or override layout from one of library modules. After adding a test layout with <layout> tag to the application module, databinding stops generating, with the following error:
error: cannot find symbol
public static TestBinding bind(#NonNull View view, #Nullable DataBindingComponent component) {
^
symbol: class DataBindingComponent
location: class TestBinding
e: error: cannot generate view binders java.lang.NullPointerException
at android.databinding.tool.store.SetterStore.getMatchingMultiAttributeSetters(SetterStore.java:633)
at android.databinding.tool.store.SetterStore.getMultiAttributeSetterCalls(SetterStore.java:520)
at android.databinding.tool.BindingTarget.resolveMultiSetters(BindingTarget.java:220)
at android.databinding.tool.LayoutBinder.<init>(LayoutBinder.java:256)
at android.databinding.tool.DataBinder.<init>(DataBinder.java:55)
at android.databinding.tool.CompilerChef.ensureDataBinder(CompilerChef.java:95)
at android.databinding.tool.CompilerChef.sealModels(CompilerChef.java:259)
at android.databinding.annotationprocessor.ProcessExpressions.writeResourceBundle(ProcessExpressions.java:213)
at android.databinding.annotationprocessor.ProcessExpressions.onHandleStep(ProcessExpressions.java:111)
at android.databinding.annotationprocessor.ProcessDataBinding$ProcessingStep.runStep(ProcessDataBinding.java:203)
at android.databinding.annotationprocessor.ProcessDataBinding$ProcessingStep.access$000(ProcessDataBinding.java:188)
at android.databinding.annotationprocessor.ProcessDataBinding.doProcess(ProcessDataBinding.java:90)
at android.databinding.annotationprocessor.ProcessDataBinding.process(ProcessDataBinding.java:65)
at org.jetbrains.kotlin.kapt3.ProcessorWrapper.process(annotationProcessing.kt:131)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:794)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:705)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)
at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176)
at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170)
at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1068)
at org.jetbrains.kotlin.kapt3.AnnotationProcessingKt.doAnnotationProcessing(annotationProcessing.kt:87)
at org.jetbrains.kotlin.kapt3.AnnotationProcessingKt.doAnnotationProcessing$default(annotationProcessing.kt:45)
at org.jetbrains.kotlin.kapt3.AbstractKapt3Extension.runAnnotationProcessing(Kapt3Extension.kt:257)
at org.jetbrains.kotlin.kapt3.AbstractKapt3Extension.analysisCompleted(Kapt3Extension.kt:212)
at org.jetbrains.kotlin.kapt3.ClasspathBasedKapt3Extension.analysisCompleted(Kapt3Extension.kt:95)
at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM$analyzeFilesWithJavaIntegration$2.invoke(TopDownAnalyzerFacadeForJVM.kt:97)
at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM.analyzeFilesWithJavaIntegration(TopDownAnalyzerFacadeForJVM.kt:107)
at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM.analyzeFilesWithJavaIntegration$default(TopDownAnalyzerFacadeForJVM.kt:84)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler$analyze$1.invoke(KotlinToJVMBytecodeCompiler.kt:374)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler$analyze$1.invoke(KotlinToJVMBytecodeCompiler.kt:64)
at org.jetbrains.kotlin.cli.common.messages.AnalyzerWithCompilerReport.analyzeAndReport(AnalyzerWithCompilerReport.kt:101)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.analyze(KotlinToJVMBytecodeCompiler.kt:365)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:130)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:161)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:63)
at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:107)
at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:51)
at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:96)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$1$1$2.invoke(CompileServiceImpl.kt:405)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$1$1$2.invoke(CompileServiceImpl.kt:98)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:920)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:98)
at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.checkedCompile(CompileServiceImpl.kt:950)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.doCompile(CompileServiceImpl.kt:919)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:404)
at sun.reflect.GeneratedMethodAccessor101.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
All DataBindingComponent interfaces from library modules are being generated, only the one from the application module is not generated.

I've had similar issue after migrating to androidx namespace. Make sure you've updated:
1.your gradle wrapper to 4.10.1 in gradle-wrapper-properties
2.you use gradle build plugin 3.3.0-beta-1
With this configuration everything works fine. Make also sure you don't have any databinding kapt or apt annotated dependencies in app.gradle as since 3.2.0 it is already bundled to gradle

Migration to Gradle plugin v.1.1.2 caused failing lint checks

My team recently decided to use newly announced unit-testing integration in Android studio, which requires upgrading Gradle plugin version to 1.1.0 or higher. But this update caused failing of Lint task for one of our modules, with very weird error. Can anyone give an idea what might be a problem here?
Caused by: java.lang.ArrayIndexOutOfBoundsException: 2459
at org.eclipse.jdt.internal.compiler.lookup.TypeSystem.getUnannotatedType(TypeSystem.java:82)
at org.eclipse.jdt.internal.compiler.lookup.TypeSystem.getParameterizedType(TypeSystem.java:138)
at org.eclipse.jdt.internal.compiler.lookup.TypeSystem.getParameterizedType(TypeSystem.java:172)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createParameterizedType(LookupEnvironment.java:946)
at org.eclipse.jdt.internal.compiler.lookup.Scope$Substitutor.substitute(Scope.java:511)
at org.eclipse.jdt.internal.compiler.lookup.Scope.substitute(Scope.java:435)
at org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding.superclass(ParameterizedTypeBinding.java:1212)
at com.android.tools.lint.EcjParser$EcjResolvedClass.isSubclassOf(EcjParser.java:1025)
at com.android.tools.lint.checks.CleanupDetector.checkResourceRecycled(CleanupDetector.java:219)
at com.android.tools.lint.checks.CleanupDetector.visitMethod(CleanupDetector.java:180)
at com.android.tools.lint.client.api.JavaVisitor$DelegatingJavaVisitor.visitMethodInvocation(JavaVisitor.java:1314)
at lombok.ast.MethodInvocation.accept(MethodInvocation.java:114)
at lombok.ast.BinaryExpression.accept(BinaryExpression.java:131)
at lombok.ast.ExpressionStatement.accept(ExpressionStatement.java:63)
at lombok.ast.Block.accept(Block.java:106)
at lombok.ast.Try.accept(Try.java:107)
at lombok.ast.Block.accept(Block.java:106)
at lombok.ast.MethodDeclaration.accept(MethodDeclaration.java:240)
at lombok.ast.NormalTypeBody.accept(NormalTypeBody.java:57)
at lombok.ast.ClassDeclaration.accept(ClassDeclaration.java:239)
at lombok.ast.NormalTypeBody.accept(NormalTypeBody.java:57)
at lombok.ast.ClassDeclaration.accept(ClassDeclaration.java:239)
at lombok.ast.CompilationUnit.accept(CompilationUnit.java:83)
at com.android.tools.lint.client.api.JavaVisitor.visitFile(JavaVisitor.java:263)
at com.android.tools.lint.client.api.LintDriver.checkJava(LintDriver.java:1491)
at com.android.tools.lint.client.api.LintDriver.runFileDetectors(LintDriver.java:1026)
at com.android.tools.lint.client.api.LintDriver.checkProject(LintDriver.java:882)
at com.android.tools.lint.client.api.LintDriver.analyze(LintDriver.java:433)
at com.android.tools.lint.client.api.LintDriver.analyze(LintDriver.java:374)
at com.android.tools.lint.LintCliClient.run(LintCliClient.java:130)
at com.android.build.gradle.internal.LintGradleClient.run(LintGradleClient.java:112)
at com.android.build.gradle.internal.LintGradleClient$run.call(Unknown Source)
at com.android.build.gradle.tasks.Lint.runLint(Lint.groovy:198)
at com.android.build.gradle.tasks.Lint.this$4$runLint(Lint.groovy)
at com.android.build.gradle.tasks.Lint$this$4$runLint$1.callCurrent(Unknown Source)
at com.android.build.gradle.tasks.Lint.lintSingleVariant(Lint.groovy:173)
at com.android.build.gradle.tasks.Lint$lintSingleVariant$0.callCurrent(Unknown Source)
at com.android.build.gradle.tasks.Lint.lint(Lint.groovy:75)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:63)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:218)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:211)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:200)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:579)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:562)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
... 47 more

Import a Gradle project into Android project

I'm working on an android Project which i'd like to import another existing project developed with gradle. So, i've got successfully integrated that gradle project inside Eclipse. I've imported the gradle project and i can see and instantiate the classes from the gradle project, but when i launch the android project it throws the next log by the console:
[2014-10-06 09:10:42 - Pdf2jpg-V3] Dx
UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dx.cf.iface.ParseException: bad class file magic (cafebabe) or version (0034.0000)
at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:472)
at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406)
at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388)
at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251)
at com.android.dx.command.dexer.Main.processClass(Main.java:665)
at com.android.dx.command.dexer.Main.processFileBytes(Main.java:634)
at com.android.dx.command.dexer.Main.access$600(Main.java:78)
at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:572)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)
at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
at com.android.dx.command.dexer.Main.processOne(Main.java:596)
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:498)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:264)
at com.android.dx.command.dexer.Main.run(Main.java:230)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.android.ide.eclipse.adt.internal.build.DexWrapper.run(DexWrapper.java:188)
at com.android.ide.eclipse.adt.internal.build.BuildHelper.executeDx(BuildHelper.java:786)
at com.android.ide.eclipse.adt.internal.build.builders.PostCompilerBuilder.build(PostCompilerBuilder.java:597)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:328)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:403)
at org.eclipse.core.internal.resources.Project$1.run(Project.java:618)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)
at org.eclipse.core.internal.resources.Project.internalBuild(Project.java:597)
at org.eclipse.core.internal.resources.Project.build(Project.java:124)
at com.android.ide.eclipse.adt.internal.project.ProjectHelper.doFullIncrementalDebugBuild(ProjectHelper.java:1143)
at com.android.ide.eclipse.adt.internal.launch.LaunchConfigDelegate.launch(LaunchConfigDelegate.java:155)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:883)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:739)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1039)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1256)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
...while parsing simple/escp/Template.class
[2014-10-06 09:10:43 - Pdf2jpg-V3] Dx 1 error; aborting
[2014-10-06 09:10:43 - Pdf2jpg-V3] Conversion to Dalvik format failed with error 1
To import the gradle project to my android project i tried in two ways:
1- Exporting a JAR from the gradle project and importing as external jar and checking it with the build path
2- adding the whole gradle project to the build path from the android project.
Both throws the same exception.

Finally the problem was the compliance level in the Gradle proeject (1.8), so, i updated the project to 1.6 (like my android project) and also updated the instances that were working only in 1.8 to be now working in 1.6.
My problem now is that it seems that the jar references included in the gradle project are not working, but in fact theay are included are gradle references as below:
So, the execution throws class not found exception:
java.lang.NoClassDefFoundError: javax.json.JsonObject
...Though javax.json is included, any idea??

Error in Android bootstrap?

Hello every one I am working on android boot strap for that I follow this link and I configure Maven on my linux machine. I also use Intellij for Android but I have some error.
error which I am getting when I try Maven command in my Android bootstrap project :
[INFO] --- maven-clean-plugin:2.3:clean (default-clean) # com-example-demo-parent ---
[WARNING] The POM for org.apache.maven.plugins:maven-clean-plugin:jar:2.3 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
Sep 07, 2013 4:33:51 PM org.sonatype.guice.bean.reflect.Logs$JULSink warn
WARNING: Error injecting: org.apache.maven.plugin.clean.CleanMojo
java.lang.NoClassDefFoundError: org/apache/maven/shared/model/fileset/FileSet
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413)
at java.lang.Class.getDeclaredConstructors(Class.java:1855)
at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245)
at com.google.inject.internal.ConstructorBindingImpl.create(ConstructorBindingImpl.java:98)
at com.google.inject.internal.InjectorImpl.createUninitializedBinding(InjectorImpl.java:629)
at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:831)
at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:758)
at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:255)
at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:204)
at com.google.inject.internal.InjectorImpl.getProviderOrThrow(InjectorImpl.java:954)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:987)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:950)
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1000)
at org.sonatype.guice.bean.reflect.AbstractDeferredClass.get(AbstractDeferredClass.java:45)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:84)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:52)
at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:100)
at org.sonatype.guice.plexus.lifecycles.PlexusLifecycleManager.onProvision(PlexusLifecycleManager.java:138)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:108)
at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:55)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
at com.google.inject.internal.InjectorImpl$3$1.call(InjectorImpl.java:965)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1011)
at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:961)
at com.google.inject.Scopes$1$1.get(Scopes.java:59)
at org.sonatype.guice.bean.locators.LazyBeanEntry.getValue(LazyBeanEntry.java:83)
at org.sonatype.guice.plexus.locators.LazyPlexusBean.getValue(LazyPlexusBean.java:49)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:253)
at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:245)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:455)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:92)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: java.lang.ClassNotFoundException: org.apache.maven.shared.model.fileset.FileSet
at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
... 54 more
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] demo parent ....................................... FAILURE [0.248s]
[INFO] demo app .......................................... SKIPPED
[INFO] Android-Bootstrap integration tests ............... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.483s
[INFO] Finished at: Sat Sep 07 16:33:52 IST 2013
[INFO] Final Memory: 7M/86M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.3:clean (default-clean) on project com-example-demo-parent: Execution default-clean of goal org.apache.maven.plugins:maven-clean-plugin:2.3:clean failed: A required class was missing while executing org.apache.maven.plugins:maven-clean-plugin:2.3:clean: org/apache/maven/shared/model/fileset/FileSet
[ERROR] -----------------------------------------------------
[ERROR] realm = plugin>org.apache.maven.plugins:maven-clean-plugin:2.3
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/home/trainee02/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.3/maven-clean-plugin-2.3.jar
[ERROR] urls[1] = file:/home/trainee02/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]]
[ERROR]
[ERROR] -----------------------------------------------------: org.apache.maven.shared.model.fileset.FileSet
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException
error in my intellij project
please help . Thanx in advance .

well i find my answer after find lots of thing on he google is that . i change following settings:
my environment setting
export M2_HOME=/home/wideand04/mavehome/apache-maven-3.0.4
export PATH=/home/wideand04/mavehome/apache-maven-3.0.4/bin:${PATH}
and i use mave 3.0.4 binary and i get my solution thanks shiju B your link help me a lot

I had a similar problem when doing maven clean.
it was using maven-clean-plugin version 2.2 by default.
i forced version 2.5 by adding the following to my build and that solved the problem:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
<version>2.5</version>
</plugin>

Error when building with Android Annotations

I'm using the guide here to integrate Android Annotations in my Eclipse project (no Maven). I've got the latest ADT running, and tried cleaning my project, double checking build paths and order/export, and turning annotations on and off, but whenever I add the Android Annotations jar to the entries under Java Compiler > Annotation Processing > Factory Path in Eclipse, I get this error:
Error
Mon Jul 15 18:01:05 PDT 2013
Errors running builder 'Java Builder' on project 'Shopping'.
java.lang.NoClassDefFoundError: org/androidannotations/annotations/EActivity
at org.androidannotations.AndroidAnnotationProcessor.getSupportedAnnotationTypes(AndroidAnnotationProcessor.java:601)
at org.eclipse.jdt.internal.compiler.apt.dispatch.ProcessorInfo.<init>(ProcessorInfo.java:58)
at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.discoverNextProcessor(IdeAnnotationProcessorManager.java:94)
at org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.round(RoundDispatcher.java:116)
at org.eclipse.jdt.internal.compiler.apt.dispatch.BaseAnnotationProcessorManager.processAnnotations(BaseAnnotationProcessorManager.java:159)
at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.processAnnotations(IdeAnnotationProcessorManager.java:134)
at org.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:820)
at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:434)
at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:365)
at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.compile(BatchImageBuilder.java:178)
at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:302)
at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:60)
at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:254)
at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:173)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:256)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:394)
at org.eclipse.core.internal.resources.Project$1.run(Project.java:618)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
at org.eclipse.core.internal.resources.Project.internalBuild(Project.java:597)
at org.eclipse.core.internal.resources.Project.build(Project.java:114)
at org.eclipse.jdt.internal.ui.util.CoreUtility$BuildJob.run(CoreUtility.java:161)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.lang.ClassNotFoundException: org.androidannotations.annotations.EActivity
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 29 more
Anyone have a fix?

You might have copied the wrong of the 2 jars. Please check carefully, where you place the one with and without "api" in the name (as given on the configuration page).
Besides that I guess you have checked all steps from the trouble shooting section.

It turned out to be a bug with my snapshot of Android Annotations. Reverting to the stable 2.7.1 works!