Execution failed for task ':sdk:mergeDebugNativeLibs'

Execution failed for task ':sdk:mergeDebugNativeLibs'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.MergeNativeLibsTask$MergeNativeLibsTaskWorkAction

2 files found with path 'lib/arm64-v8a/libaaa.so' from inputs:

- /Volumes/hp-sxf/StudioProjects/face/sdk/build/intermediates/merged_jni_libs/debug/out/arm64-v8a/libaaa..so

- /Volumes/hp-sxf/StudioProjects/face/sdk/build/intermediates/cxx/Debug/5h3r672g/obj/arm64-v8a/libaaa..so

If you are using jniLibs and CMake IMPORTED targets, see

https://developer.android.com/r/tools/jniLibs-vs-imported-targets

网上看了很多原因，也看了官方解释，跟我的情况还不一样，我的最后查到的原因是因为配置了gradle task，这个task 会在编译期拷贝libaaa.so到cmake依赖的文件夹，但是换了一个gradle版本，这个就会报错了，匪夷所思，把拷贝逻辑去掉就好了

很久之后，又遇到了同样的问题，按官方解释的把sourceSets去掉，也不行，最后试了下不去掉sourceSets，而是把里边的dir置为空可以顺利build通过，这种情况存在于创建在gradle4之前，又切换到gradle4.0之后。

sourceSets {
        main {
            // The libs directory contains prebuilt libraries that are used by the
            // app's library defined in CMakeLists.txt via an IMPORTED target.
            jniLibs.srcDirs = []
        }
    }

Execution failed for task ':sdk:mergeDebugNativeLibs'

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