Question: I have made my application and published it to google play store. I used Firebase Phone Authentication for verification members, before I released it to the play store it worked fine, but when I downloaded it from google play it throws an error saying:  

**(this app is not authorized to use Firebase Authentication. Please verify that the correct package name and SHA-1 are configured in the Firebase Console. [App validation faild])**

I also added App Signing of SHA 1, SHA 256 and Upload SHA 1, SHA 256 of my application in google play console, but unfortunately, it doesn't work.

[![Screen Shot](https://i.stack.imgur.com/cC9hi.png)](https://i.stack.imgur.com/cC9hi.png)

Answer: 
Thanks, @drip, for the solution, which was to open up the command prompt as administrator and then running `theme update`. Worked like a charm!
If you are using WSL, it would be `sudo theme update`, then put your WSL password and it's done.