viyoriya
I changed this
arc set-config default https://dev.getsol.us
with this one
arc set-config default $HOME/.arcc
EDIT: I get this.
Set key "default" = "/home/algent/.arcc" in user config (was "https://dev.getsol.us").
Usage Exception: Server URI "/api/" must include a protocol and domain. It should be in the form "https://phabricator.example.com/".