On first session, tmux says "no current session"

Question

Whenever I open tmux for the first time, it throws the following error.

/home/user/.tmux.conf:67: no current window

The relevant parts of the conf file are as follows.

 52 set-window-option -g window-status-fg "#666666"
 53 set-window-option -g window-status-bg default
 54 set-window-option -g window-status-attr default
 55 set-window-option -g window-status-current-fg red
 56 set-window-option -g window-status-current-bg default
 57 set-window-option -g window-status-current-attr default
 58 set-option -g message-fg white
 59 set-option -g message-bg black
 60 set-option -g message-attr bright
 61 set -g status-left " "
 62 set -g status-justify left
 63 setw -g window-status-format         ' #(echo "[#{window_index}]#{window_name}") '
 64 #setw -g window-status-current-format         ' #(echo "[#{window_index}]#{window_name}") '
 65 setw -g window-status-current-format ' #(echo "#{window_name}") '
 66 set -g status-right "#(echo $(date))"
 67 set allow-rename off
 68 set -sg escape-time 0

This error appears only for the first session I open, for subsequent sessions, the error does not appear.

Answer 1

You don't have -g on that set command so it needs a window to set the option on, but no windows exist yet.