java - Cannot inherit from final class

Question

I installed Android studio 0.4.2 at Windows 7(64-bit). Try create simple project from studio, but I get an error:

Cannot inherit from final class

• I try both studio64.exe and studio.exe.
• I try both jdk 1.7 u45 x86 and jdk 1.7 u51 x64
• gradle 1.9 from repo.

In my virtual machine XPx32 with all this files a-studio work perfectly (I just copy android-studio,

c:Users\%user%.AndroidStudioPreview, c:Users\%user%.gradle from my real vachine into virtual).

I'm behind a proxy with ntlm.

log is:

2014-01-19 12:31:20,504 [  22420]   WARN - nal.AbstractExternalSystemTask - Cannot inherit from final class 
com.intellij.openapi.externalSystem.model.ExternalSystemException: Cannot inherit from final class
    at org.jetbrains.plugins.gradle.service.project.GradleExecutionHelper.execute(GradleExecutionHelper.java:185)
    at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver.resolveProjectInfo(GradleProjectResolver.java:113)
    at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver.resolveProjectInfo(GradleProjectResolver.java:61)
    at com.intellij.openapi.externalSystem.service.remote.RemoteExternalSystemProjectResolverImpl$1.produce(RemoteExternalSystemProjectResolverImpl.java:41)
    at com.intellij.openapi.externalSystem.service.remote.RemoteExternalSystemProjectResolverImpl$1.produce(RemoteExternalSystemProjectResolverImpl.java:37)
    at com.intellij.openapi.externalSystem.service.remote.AbstractRemoteExternalSystemService.execute(AbstractRemoteExternalSystemService.java:59)
    at com.intellij.openapi.externalSystem.service.remote.RemoteExternalSystemProjectResolverImpl.resolveProjectInfo(RemoteExternalSystemProjectResolverImpl.java:37)
    at com.intellij.openapi.externalSystem.service.remote.wrapper.ExternalSystemProjectResolverWrapper.resolveProjectInfo(ExternalSystemProjectResolverWrapper.java:49)
    at com.intellij.openapi.externalSystem.service.internal.ExternalSystemResolveProjectTask.doExecute(ExternalSystemResolveProjectTask.java:48)
    at com.intellij.openapi.externalSystem.service.internal.AbstractExternalSystemTask.execute(AbstractExternalSystemTask.java:137)
    at com.intellij.openapi.externalSystem.service.internal.AbstractExternalSystemTask.execute(AbstractExternalSystemTask.java:123)
    at com.intellij.openapi.externalSystem.util.ExternalSystemUtil$3.execute(ExternalSystemUtil.java:471)
    at com.intellij.openapi.externalSystem.util.ExternalSystemUtil$4$2.run(ExternalSystemUtil.java:549)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl$TaskRunnable.run(ProgressManagerImpl.java:464)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:178)
    at com.intellij.openapi.progress.ProgressManager.executeProcessUnderProgress(ProgressManager.java:209)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:212)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:171)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl$8.run(ProgressManagerImpl.java:373)
    at com.intellij.openapi.application.impl.ApplicationImpl$8.run(ApplicationImpl.java:436)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
    at com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:153)

UPDATED

In my project 3 subprojects. Top-level build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.7.+'
    }
}

allprojects {
    repositories {
        mavenCentral()
    }
}

Main project build.gradle

apply plugin: 'android'

android {
    compileSdkVersion 18
    buildToolsVersion "19.0.1"

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 18
    }

    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
}

dependencies {
    compile project(':wheel')
    compile project(':appRater')
    compile files('libs/android-support-v13.jar')
    compile files('libs/libGoogleAnalyticsServices.jar')
}

In all subprojects build.gradle are:

apply plugin: 'android-library'

android {
    compileSdkVersion 18
    buildToolsVersion "19.0.1"

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 18
    }

    release {
        runProguard false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
    }
}

Answer 1

It seems a bug in android studio not specific but related to

Cannot inherit from final Class

Try comment #9 in below reported bug if it solves yours problem as well.

BROKEN LINK NOW

https://code.google.com/p/android/issues/detail?id=63953

#comment9 was

Close Android Studio, take a backup and delete all these files from your studio setup directory and start it again, might be it can help you

android-studio/plugins/android/lib/builder-0.6.1.jar
android-studio/plugins/android/lib/builder-model-0.6.1.jar
android-studio/plugins/gradle/lib/gradle-base-services-1.8.jar
android-studio/plugins/gradle/lib/gradle-build-setup-1.8.jar
android-studio/plugins/gradle/lib/gradle-core-1.8.jar
android-studio/plugins/gradle/lib/gradle-messaging-1.8.jar
android-studio/plugins/gradle/lib/gradle-native-1.8.jar
android-studio/plugins/gradle/lib/gradle-plugins-1.8.jar
android-studio/plugins/gradle/lib/gradle-tooling-api-1.8.jar
android-studio/plugins/gradle/lib/gradle-wrapper-1.8.jar
android-studio/plugins/gradle/lib/guava-11.0.2.jar