I started the Monero Wallet GUI and ticked the
Testnet checkbox at the opening page. I imported the testnet wallet from file, that was created in the CLI. After entering the password, I get the following error:
Rahter than clicking on the app from the Applications folder (macOS), I also tried starting the GUI from a Terminal, with the following command:
/Applications/monero-wallet-gui.app/Contents/MacOS/monero-wallet-gui --testnet, but after trying to open the wallet, that threw the same error. Any ideas what I'm doing wrong?