I was able to solve this problem by following these steps:
Step 1: Move from the Android view to the Projects view
Step 2: now in the application folder you should see libs, if you do not see it, create it
Step 3. Drag and drop the .jar file here, you can get the invitation "This file does not belong to the project", just click "OK"
4: jar libs, jar " ", "" " "
5: ! .