I installed and ran the erpnext-dev. ovaWhat's going on?

[shuairobin]

.ConnectionError: Error 111 connecting to localhost:13000. Connection refused

Well, are you running the ERPNext server with: bench start …command on the server? Because I encountered the same error moments ago and realised that the bench server for ERPNext must be running to successful execute… bench update --patch which is what your output refers to. Hope that’s what it is.