I have a little test proyect, it exports to windows correctly but fails to android.
I created the keystore with the data from the docs:
keytool -keyalg RSA -genkeypair -alias androiddebugkey -keypass android -keystore debug.keystore -storepass android -dname "CN=Android Debug,O=Android,C=US" -validity 9999
And I also try with the data from another question:
keytool -keyalg RSA -genkeypair -alias androiddebugkey -keypass android -keystore debug.keystore -storepass android -dname "CN=Android Debug,O=Android,C=US" -validity 9999 -sigalg MD5withRSA
Of course I added the keystore to the config of android:

Here is the error:

Thanks