Google play error

I’m trying to upload my game to the google play store but I keep receving this message, I’v tried different combination but it is’nt working

Your APK or Android App Bundle’s package name must be in the following format ‘com.example.myapp’. It may contain letters (a-z), numbers and underscores (_). It must start with a lowercase character. It must be 150 characters or fewer.

Change your package name accordingly, rebuild and upload the new build.