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I am new to Emacs. I am trying to access a file in the "Emacs" folder on my desktop.

I run the C-x C-f command, then type ~/Desktop/Em.

I then hit TAB, but there's no completion. Emacs says [No Match].

Could someone please explain why the file name doesn't complete? I am working on Mac OS 10.15.6.

enter image description here

Tyler
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finite_diffidence
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    Why is there a forward slash / before your ~? Try removing that and see if that helps. – Cousin Dupree Aug 17 '20 at 21:41
  • Thanks, the forward slash is put in by Emacs automatically. The screenshot works if I manually complete the path (i.e. type in ~/Desktop/Emacs) – finite_diffidence Aug 17 '20 at 21:51
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    The / is provided by Emacs because you are in the root directory (/). But that shouldn't prevent completion: Emacs will complete /~/whatever the same way it completes ~/whatever. – Drew Aug 17 '20 at 22:55
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    Do you see the same behavior if you start Emacs with emacs -Q (no init file)? If so, do you have a subdirectory Desktop in your home directory (~)? And do you have a file Emacs in that subdirectory? – Drew Aug 17 '20 at 22:56
  • Emacs -Q seems to fix the issue! What is going on? Is there a way to make this default behaviour? – finite_diffidence Aug 17 '20 at 22:58
  • Ok @Drew, I managed to fix it: Seems to be a permission issue:

    https://apple.stackexchange.com/questions/371888/restore-access-to-file-system-for-emacs-on-macos-catalina

     – finite_diffidence Aug 17 '20 at 23:11
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    The / at the beginning of the path is a side effect of how MacOS starts applications: when you start Emacs as an application, it doesn't get a working directory set, and defaults to the root directory. When you start it from the terminal (with or without -Q), it gets the working directory from the terminal. – jirassimok Aug 18 '20 at 00:08
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    @finite_diffidence: Please post your solution as an answer. (You can accept your own answer.) Q & A need to stand on their own, to help others. Comments can be deleted at any time. Thx. – Drew Aug 18 '20 at 18:42
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    Does this answer your question? How to Restore File System Access in macOS Catalina – Tyler May 17 '21 at 19:26

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Following from Drew's response (which also works). I found another answer that solved my issue using Emacs from the Mac launcher bar:

https://apple.stackexchange.com/questions/371888/restore-access-to-file-system-for-emacs-on-macos-catalina

finite_diffidence
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