java.lang.UnsatisfiedLinkError:
dalvik.system.PathClassLoader[
DexPathList[[zip file "/data/app/com.example.myndkjnidemo-tQiU7i-8yQdnuC1-yo1Fvg==/base.apk"],
nativeLibraryDirectories=[
/data/app/com.example.myndkjnidemo-tQiU7i-8yQdnuC1-yo1Fvg==/lib/arm64,
/system/lib64, /system/product/lib64]]]
couldn't find "libhello.so"

//ndkBuild 需要 指定path
externalNativeBuild {
    ndkBuild {
        path 'src/main/jni/Android.mk'
    }
}

The option 'android.useDeprecatedNdk' is deprecated.

NDK was located by using ndk.dir property.
This method is deprecated and will be removed in a future release.
If you delete ndk.dir from local.properties and set android.ndkVersion to [22.1.7171670]
then NDK at
/Users/tmk/Library/Android/sdk/ndk/22.1.7171670 will be used.
https://developer.android.com/r/studio-ui/ndk-dir