Hello, I don't know if anybody has the same problem on a app called, "Walk band". But each time that I would share a song from scratch, it would just say, "No app can perform this action". Also I have checked on the app manager if Walk band and Gmail was enabled and it was. Though, nothing seems to be the problem. I even tried resetting my phone and nope.......
Welcome to Android Central! Are you trying to share it via email? Does it give you an option to save the song to the phone's internal storage instead, after which you could attach the song file to an email?
Facebook
Twitter
Instagram