Another idea: Might you try to revert the compileSdkVersion to 23? This is the most likely source of this issue.
Tips on how to compile are on https://forums.dolphin-emu.org/Thread-green-notice-development-thread-compiling-the-android-port and https://github.com/dolphin-emu/dolphin#building-for-android
Tips on how to compile are on https://forums.dolphin-emu.org/Thread-green-notice-development-thread-compiling-the-android-port and https://github.com/dolphin-emu/dolphin#building-for-android