Android Stadio 项目运行时 gradle 出错了，错误如下：
:app:prepareComAndroidSupportAppcompatV72340Library UP-TO-DATE
Information:Gradle tasks [:app:generateDebugSources, :app:mockableAndr oidJar, :app:prepareDebugUnitTestDependencies, :app:generateDebugAnd roidTestSources]
:app:checkDebugManifest
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugResources
:app:preDebugBuild UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:compileDebugAidl UP-TO-DATE
:app:prepareComAndroidSupportSupportVectorDrawable2340Library UP-TO-DATE
:app:preReleaseBuild UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:prepareComAndroidSupportAnimatedVectorDrawable2340Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugRenderscript UP-TO-DATE
:app:preBuild UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:prepareComAndroidSupportRecyclerviewV72340Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42340Library UP-TO-DATE
:app:prepareComAndroidSupportDesign2340Library UP-TO-DATE
:app:mergeDebugResources FAILED
Information:BUILD FAILED
Information:Total time: 3.758 secs
Information:2 errors
Information:0 warnings
Information:See complete output in console
求大神指教，谢谢！
