It is required to deploy to all testnets (Ropsten, Kovan, Rinkeby, Goerli) in order to proceed with deployment. However, some of these have been discontinued.
Suggested fix: Make it optional to deploy to all, or remove all testnets except for the desired ones from code (I went for the latter, but I'll try to come up with a solution to accomplish the former).
It is required to deploy to all testnets (Ropsten, Kovan, Rinkeby, Goerli) in order to proceed with deployment. However, some of these have been discontinued.
Suggested fix: Make it optional to deploy to all, or remove all testnets except for the desired ones from code (I went for the latter, but I'll try to come up with a solution to accomplish the former).