On Monday, December 12, 2022 at 03:15:46 PM GMT+1, Eli Zaretskii wrote: > Date: Mon, 12 Dec 2022 13:56:58 +0000 (UTC) > From: Ergus > > Is this when building or when starting after the build completes?  (I > see no problem in either case.) > > When starting after the build completes. > > > and this in gui: > > > > ``` > > Loading loadup.el (source)...Dump mode: nilUsing load-path (/home/ergo/.local/share/emacs/30.0.50/lisp > > /home/ergo/.local/share/emacs/30.0.50/lisp/emacs-lisp > > /home/ergo/.local/share/emacs/30.0.50/lisp/progmodes > /home/ergo/.local/share/emacs/30.0.50/lisp/language > > /home/ergo/.local/share/emacs/30.0.50/lisp/international > > /home/ergo/.local/share/emacs/30.0.50/lisp/textmodes > > /home/ergo/.local/share/emacs/30.0.50/lisp/vc)Loading emacs-lisp/debug-early...Symbol's function > definition > > is void: file-name-sans-extension > > `` > > If this is during startup after the build, then your pdmp file either > doesn't exist or is faulty. > > This looks like the issue... How can I solve this? Make extracleanor make boostrap does not solve > this? Do you install Emacs (as in "make install"), or do you run it from the source tree? From source tree. I checkout to other branches, old commits, recompiled, emacs -Q... just same error again and again.  P.S. And please don't remove the list from the CC. Sorry I am using a weird web client (as emacs is broken) I am not sure how does it work