Actually, I think the error has to do with the Port you are using. Based on the logs you've provided, the local development server is unable to start because there's a process already bound to port 9000. To address this, you'll either need to identify and kill this existing process or use a different port. The first option is mostly outside the scope of our support, but the steps looks more or less like the following:
lsof -i :9000
kill -9 pid_returned_by_lsof
The second option requires appending the --port flag when starting the local development server. For example:
squarespace-server https://cyan-tarantula-6j7n.squarespace.com --auth --port=9001
I just hope this forum to help someone that encounter this problem like me.
AgileSSdev got a reaction from Alexander_SQSP in Error "Failed to bind to localhost/127.0.0.1:9000" during starting up local server
