近日，在将一个旧Android Studio项目(带native c/c++)升级了新版本gradle 4.0.1后(Android Studio版本4.0.1)，发现重新clean再构建时，提示：
More than one file was found with OS independent path ‘lib/armeabi-v7a/xxx.so’. If you are using jniLibs and CMake IMPORTED targets, see https://developer.android.com/studio/preview/features#automatic_packaging_of_prebuilt_dependencies_used_by_cmake
虽然一开始也是一脸茫然，但既然提示信息里都提供了连接了，那就看一下吧，顺带一提，给出的链接我写这篇博文的时候并不是最终信息位置，最终链接在这里：https://developer.android.com/studio/releases/gradle-plugin#cmake-imported-targets ，仔细阅读了一下，发现实际上是从gradle 4.0开始就对jni的预编译依赖引用方式做出了修改：
原来的直接放在“src/main/jniLibs”中的方法已经作废了：
With Android Gradle Plugin 4.0, the above configuration is no longer necessary and will result in a build failure:
* What went wrong:
Execution failed for task ':app:mergeDebugNativeLibs'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
> More than one file was found with OS independent path 'lib/x86/libprebuilt.so'
External native build now automatically packages those libraries, so explicitly packaging the library with jniLibs results in a duplicate. To avoid the build error, move the prebuilt library to a location outside jniLibs or remove the jniLibs configuration from your build.gradle file.
所以，解决方法就是把jniLibs里的预编译库换个位置，比如把jniLibs改为nativeLibs，当然，CMakeLists.txt中的IMPORTED路径也要做出相应修改，完事再次build即可通过
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