When I uploaded the android project to github a few days ago, I found that the apk file could not be found in the remote warehouse (in fact, the entire build folder could not be found), I felt very strange, and then I put the apk alone in the project root directory, and then add in, the error is as follows:
In fact, github will have a .ignore file that records some file names. These files will be ignored because they are generated by compilation or executed, and will not be uploaded to github, but if you must upload them, just do it.
Then commit and push it.