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由于下载最新的SDK并安装Android Studio,我的项目无法构建.我收到以下消息:

Error:Gradle: Execution failed for task ':SampleProject:processProdDebugManifest'.
> Manifest merger failed : uses-sdk:minSdkVersion 14 cannot be smaller than version L declared in library com.android.support:support-v4:21.0.0-rc1