...
Import the files from this unity package into your project.
If you have disabled automatic external dependency resolution, be sure to resolve dependencies now:
Select Assets → External Dependency Manager → Android Resolver → Resolve
Wait for the asset resolution, and ensure that you see the “Resolution Succeeded” message at the end
Note: If multidex is not enabled for your project, there’s a chance that due to androidx the MobileFuse SDK may take your app over the method limit. Ensure that multidex is enabled for your project if you are getting build failures.
...