Error building Player: UriFormatException

When I attempt to build my Android project, I get this error:

Error building Player: UriFormatException: URI scheme must start with a letter and must consist of one of alphabet, digits, ‘+’, ‘-’ or ‘.’ character.

I get even more errors if I try to deploy to a PC/Mac build, I only need an Android version, but I was testing the PC build to see if it would work.

How do I troubleshoot this error?

In my case that was happening because i had the project in a folder named: Shelter/Blue, the problme was the “/”, when i changed it, the problem was solved