libyuv_static.a is missing.

[yinguoxiangyi]

when run the project

Build command failed.
Error while executing process F:\Android\Sdk\cmake\3.10.2.4988404\bin\cmake.exe with arguments {--build F:\work\temp\AICamera_new\AICamera\AICamera\app.externalNativeBuild\cmake\debug\armeabi-v7a --target native-lib}
ninja: error: '../../../../src/main/jni/armeabi-v7a/libyuv_static.a', needed by '../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libnative-lib.so', missing and no known rule to make it

so how do I get libyuv_static.a?