Android Studio 0.4.3 – 根项目中没有找到任务“组合”

在另一天更新到0.4.3,并试图启动一个新的项目,甚至不使用现有的项目,我得到这个错误：

FAILURE: Build failed with an exception.

• What went wrong: Task ‘assemble’ not found in root project ‘XXX’.

• Try: Run gradle tasks to get a list of available tasks. Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output.

这是我在日志文件中找到的：

2014-01-26 09:50:18,186 [ 276355]   WARN - nal.AbstractExternalSystemTask - com.android.builder.model.SourceProvider.getAidlDirectories()Ljava/util/Collection; 
com.intellij.openapi.externalSystem.model.ExternalSystemException: com.android.builder.model.SourceProvider.getAidlDirectories()Ljava/util/Collection;
    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$8.run(ApplicationImpl.java:420)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
    at com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:150)

这里是我的build.gradle文件(未触动)：

// 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:0.8.+'
    }
}

allprojects {
    repositories {
        mavenCentral()
    }
}

我已经在线检查了几个帖子,但没有一个工作到目前为止.任何帮助将不胜感激.

解决方法

快速回答

删除组件标签之间的所有内容

<component name="FacetManager"> 
   ... <!-- remove all in this node 
</component>`

长回答

见http://tools.android.com/knownissues

If you get the following error message:

Gradle: 
FAILURE: Could not determine which tasks to execute.
* What went wrong:
Task 'assemble' not found in root project 'MyProject'.
* Try:
Run gradle tasks to get a list of available tasks.

The real problem is that previous version of Android Studio
misconfigured the IDEA file (e.g. MyProject.iml) — it added an extra
"<component name="FacetManager">" XML element that shouldn’t be
present.
In the case above,the solution is to edit “MyProject.iml”
and to remove the entire node <component name="FacetManager"> ... </component>

在您的具体项目称为XXX的情况下,您将寻求更正名为XXX.iml的文件

文档还说“或者,您可以删除项目的.idea文件夹和iml文件,并将您的源重新导入到新的Android Studio项目中.不是这个解决方案会为你而工作,因为你甚至不能得到一个新的项目来构建.