I finally managed to obfuscate my Android application, now I want to test it by installing the APK file and running it on the emulator.
if use more than one emulator at firs use this command
adb devices
and then chose amulatur and install application
adb -s "EMULATOR NAME" install "FILE PATH" adb -s emulator-5556 install C:\Users\criss\youwave\WhatsApp.apk