I am a newbie and in this part of the tutorial:
" More generally, if you want to see a function in its original source file, you can use the xref-find-definitions function to jump to it. xref-find-definitions works with a wide variety of languages, not just Lisp, and C, and it works with non-programming text as well. For example, xref-find-definition will jump to the various nodes in the Texinfo source file of this document (provided that you've run the `etags' utility to record all the nodes in the manuals that come with Emacs; "
M-. doesn't find any definition of functions even though the autocompletion in the call works. I have no idea how to create a tag table, because the manual just states "etags inputfile" but again I have no idea which file i would need to create my tags on. Also find-function doesn't work either, it just states simple.el can't be found which is no surprise because only a simple.elc exists. so it searches for the wrong file by default but i don't know how to change that either. Can somebody help?