Hello everyone, I have written my first app that is designed to communicate with Robots using ROSJAVA. The app compiles and builds with no errors however, as soon as it launches on my device, I see a ClassDefNotFound exception that terminates the program. I've googled and read through some solutions but I haven't managed to solve the problem. here is one and NoClassDefFoundError Android - Stack Overflow. By the way, I'm using API level 3.2. Any help is greatly appreciated. Thank you.