It is my first time to upload an app to google play. when I tried to upload APK file I got that Error enter image description here I tried to fix it by generate an upload key and keystore I followed all the steps in here but I got that error enter image description here what is the problem and how to fix it?

1 Answers

Helpmeplease On

See if there is something running in the window that's in the bottom (TODO, Terminal,logcat).

If there is; try to stop it. After that sign it again.

(Also, if that doesn't work, try reopening the project or "invalidate cache and restart" under Files menu) The problem should be gone.