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I registered a focus-in-hook that generates an error. Now any time I try to execute a command in the minibuffer I get an error and am then unable to execute the load-file that would be required to resolve the error. How can I remove this hook or otherwise recover from this situation?

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    Have you tried M-: (remove-hook 'focus-in-hook 'my-func)? I created a function that raises an error named my-func and was still able to remove the hook in this way (while running emacs -Q). If this doesn't work for you, please provide a minimum working example, or provide a description of the observed behavior vs the expected behavior. – nispio Apr 18 '16 at 23:02
  • You can also use emacs -Q to visit the file where you do such stuff that breaks things. IOW, edit the file without using your init file. – Drew Apr 19 '16 at 0:30
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A simple test seems to suggest that you would still be able to evaluate a lisp expression with eval-expression (bound to M-:) in this situation. If so, then try

M-: (remove-hook 'focus-in-hook 'my-func)

Where my-func is the name of the offending function. You can then make the necessary corrections and re-set the hook.

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