In the solution you mentioned, the application was built. But this time, because I am trying to provide ads using Google Mobile Ads (https://github.com/googleads/googleads-mobile-unity/releases/download/v8.0.0/GoogleMobileAds-v8.0.0.unitypackage), the application hangs on startup again.
Error Unity NullReferenceException: Object reference not set to an instance of an object.
Could you please share the contents of the Assets\Plugins\Android folder with me? Because, I imported the lates version of Release EDM4U 1.2.182 · googlesamples/unity-jar-resolver · GitHub and performed Force Resolve, but it did not add any files to the folder (only maingradle, settingsgradle etc.). That means there are no files with .aar extension in the folder. Is this the case for you too?