tmux server connection refused

tmux_ignore_shell_startup.sh

#!/bin/sh
#
# If your shell is returning an error on initialization, it makes tmux-server di.
# This gist shows how to work around that.  Googling shows that this happens to
# zsh users a lot.
#
# `autoload: command not found`
# `bashcompinit: command not found`
# `server_signal: Child exited`
# `connect failed: Connection refused`
# c.f. https://github.com/tmux/tmux/issues/1639

printf  'set -g default-shell /bin/dash\nset -g default-command "exec /bin/bash --norc --noprofile"' > test
tmux kill-server; tmux kill-server ; tmux -f test