Debugger entered--Lisp error: (error "No buffer named *Composing*") signal(error ("No buffer named *Composing*")) error("No buffer named %s" "*Composing*") (if (stringp buffer) (error "No buffer named %s" buffer) (error "Invalid buffer argument")) (if (bufferp buffer) buffer (if (stringp buffer) (error "No buffer named %s" buffer) (error "Invalid buffer argument"))) (if (null buf) (if (bufferp buffer) buffer (if ... ... ...)) buf) (let ((buf ...)) (if (null buf) (if ... buffer ...) buf)) (if (null buffer) (current-buffer) (let (...) (if ... ... buf))) server-get-buffer("*Composing*") (setq buffer (server-get-buffer buffer)) kill-buffer("*Composing*") post-save-current-buffer-and-exit() * call-interactively(post-save-current-buffer-and-exit)