Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused Failed to parse options: Cannot open display: gitg 3.17.1

Usage: gitg [OPTION...] - Git repository viewer Help Options: -h, --help Show help options --help-all Show all help options --help-gtk Show GTK+ Options Application Options: -v, --version Show the application's version --activity Start gitg with a particular activity -c, --commit Start gitg with the commit activity (shorthand for --activity commit) --no-wd Do not try to load a repository from the current working directory --display=DISPLAY X display to use -a, --all Select all commits by default in the history activity -b, --branches Select all branches by default in the history activity -r, --remotes Select all remotes by default in the history activity -t, --tags Select all tags by default in the history activity -s, --select-reference=REFERENCE Select the specified reference by default in the history activity