title: Android instant run gradle error
body: <p>Sometimes when I use instant-run I get this error (mainly after layout.xml changes):</p>
  
  <blockquote>
    <p>FAILURE: Build failed with an exception.</p>
    
    <ul>
    <li><p>What went wrong: Execution failed for task ':wear:transformClassesWithNewClassShrinkerForDevDebug'.</p>
    
    <blockquote>
      <p>java.lang.IllegalArgumentException</p>
    </blockquote></li>
    <li><p>Try: Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output.</p></li>
    </ul>
  </blockquote>
  
  <p>Now my project needs a rebuild otherwise wont run and continues on giving me the same error.<br>
  But if instead of rebuilding it again I use the cmd with <code>./gradlew :wear:assembleDevDebug</code> the <code>:wear:transformClassesWithNewClassShrinkerForDevDebug</code> builds just fine and I'm able to run it again, though instant-run was lost.</p>
  
  <p>So it fails when I try instant-run but it doesn't when cmd is used? Why is this happening?<br>
  Thanks.</p>
  
  <p><strong>EDIT:</strong>
  Opened an issue in google code <a href="https://code.google.com/p/android/issues/detail?id=225574" rel="nofollow">here</a></p>
  
  <p><strong>EDIT 2:</strong>
  To reproduce this error in the cmd I had to change my layout.xml, like commenting a view, and then run <code>:wear:transformClassesWithNewClassShrinkerForDevDebug</code>.<br>
  The output:</p>
  
  <blockquote>
    <p>FAILURE: Build failed with an exception.</p>
    
    <ul>
    <li><p>What went wrong: Execution failed for task ':wear:transformClassesWithNewClassShrinkerForDevDebug'.</p>
    
    <blockquote>
      <p>java.lang.IllegalArgumentException</p>
    </blockquote></li>
    <li><p>Try: Run with --info or --debug option to get more log output.</p></li>
    <li><p>Exception is: org.gradle.api.tasks.TaskExecutionException: Execution failed for task
    ':wear:transformClassesWithNewClassShrinkerForDevDebug'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
        at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
        at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110)
        at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
        at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
        at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
        at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
        at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
        at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
        at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
        at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:153)
        at org.gradle.internal.Factories$1.create(Factories.java:22)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:150)
        at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
        at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
        at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
        at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:99)
        at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
        at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
        at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)
        at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)
        at org.gradle.launcher.exec.DaemonUsageSuggestingBuildActionExecuter.execute(DaemonUsageSuggestingBuildActionExecuter.java:51)
        at org.gradle.launcher.exec.DaemonUsageSuggestingBuildActionExecuter.execute(DaemonUsageSuggestingBuildActionExecuter.java:28)
        at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:43)
        at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:173)
        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:239)
        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:212)
        at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:35)
        at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:205)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169)
        at org.gradle.launcher.Main.doAction(Main.java:33)
        at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:55)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:36)
        at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
        at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
    Caused by: java.lang.RuntimeException:
    java.lang.IllegalArgumentException
        at com.android.ide.common.internal.WaitableExecutor.waitForTasksWithQuickFail(WaitableExecutor.java:147)
        at com.android.build.gradle.shrinker.AbstractShrinker.waitForAllTasks(AbstractShrinker.java:347)
        at com.android.build.gradle.shrinker.IncrementalShrinker.waitForAllTasks(IncrementalShrinker.java:275)
        at com.android.build.gradle.shrinker.IncrementalShrinker.processInputs(IncrementalShrinker.java:241)
        at com.android.build.gradle.shrinker.IncrementalShrinker.incrementalRun(IncrementalShrinker.java:96)
        at com.android.build.gradle.internal.transforms.NewShrinkerTransform.incrementalRun(NewShrinkerTransform.java:220)
        at com.android.build.gradle.internal.transforms.NewShrinkerTransform.transform(NewShrinkerTransform.java:119)
        at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:178)
        at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:174)
        at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:156)
        at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:173)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:245)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:232)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
        ... 60 more Caused by: java.lang.IllegalArgumentException
        at org.objectweb.asm.ClassReader.(Unknown Source)
        at org.objectweb.asm.ClassReader.(Unknown Source)
        at com.android.build.gradle.shrinker.IncrementalShrinker.processChangedClassFile(IncrementalShrinker.java:262)
        at com.android.build.gradle.shrinker.IncrementalShrinker.access$000(IncrementalShrinker.java:47)
        at com.android.build.gradle.shrinker.IncrementalShrinker$1.call(IncrementalShrinker.java:229)
        at com.android.build.gradle.shrinker.IncrementalShrinker$1.call(IncrementalShrinker.java:216)</p></li>
    </ul>
    
    <p>BUILD FAILED</p>
    
    <p>Total time: 11.114 secs</p>
  </blockquote>