Hi,
Please check that you have the latest version of android studio, the latest patch of fusion installed after installing the MMF dev + android exporter.
This could be related to several things
1.- using an old gradlew wrapper (the latest patch will solve this)
2.- JDK open a CMD windows and run javac -version, the latest version of Gradlew use version 302 your is 152, check that android studio is the latest version.
WINNER! Android Studio was the cause yet again. Thank you Fernando