If you updated your monero-GUI to current version v.12.0 but GUI can't connect to Daemon v.12.0, here's the Troubleshoot until the bug is fixed. I run Ubuntu 64-bit and it worked for me (link goes to reddit:).
If you updated your monero-GUI to current version v.12.0 but GUI can't connect to Daemon v.12.0, here's the Troubleshoot until the bug is fixed. I run Ubuntu 64-bit and it worked for me (link goes to reddit:).