Error:Execution failed for task ':app:compileDebugNdk'.

如果报下面错误

Error:Execution failed for task ':app:compileDebugNdk'.
> Error: NDK integration is deprecated in the current plugin.  Consider trying the new experimental plugin.  For details, see http://tools.android.com/tech-docs/new-build-system/gradle-experimental. 
>  Set "$USE_DEPRECATED_NDK=true" in gradle.properties to continue using the current NDK integration.

可以用如下方法解决

1 在gradle-wrapper.properties 文件下加入如下文件

USE_DEPRECATED_NDK=true

2.在build.gradle 中加入

   sourceSets.main {
        jni.srcDirs = []
    }

最后点击右上角sync就可以