错误提示：

Manifest merger failed : uses-sdk:minSdkVersion 15 cannot be smaller than version 19 declared in library [com.shuyu:GSYVideoPlayer:7.0.1] D:\Android\Android Studio\.AndroidStudio.3\.gradle\caches\transforms-1\files-1.1\GSYVideoPlayer-7.0.1.aar\cadae2e9b8731e57a167e9fec798f1db\AndroidManifest.xml as the library might be using APIs not available in 15
	Suggestion: use a compatible library with a minSdk of at most 15,
		or increase this project's minSdk version to at least 19,
		or use tools:overrideLibrary="com.shuyu.gsyvideoplayer.lib" to force usage (may lead to runtime failures)

 

解决办法：

     将当前项目的所支持的最小SDK版本改为19即可

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Manifest merger failed : uses-sdk:minSdkVersion 15 cannot be smaller than versio