We are experimenting a very weird problem. We have integrated oneSignal push notification plugin and everything is working perfectly. We have decided to go to the next step and support Android specific push notification icons so our app look better.
The problem is as soon as we add the following files in our root directory, we receive the error #12 when building for android on Windows. We are using the build 2016.2818. If we remove those files from our root directory, then we can build properly without the error.
Any hint of how to solve this problem would be deeply appreciated ?