counsel.el (counsel-library-candidates): check dirs in load-path
exists
#1720
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This PR fixes the following issue for me:
M-x counsel-find-library
causes the following error on macOS:For some reason,
/Library/Application Support/Emacs/26.1/site-lisp
is in my load-path, but the dir doesn't exist.Looking at
find-library
's code, I see that it also runsfile-directory-p
(inlocate-file-completion-table
). Note:find-library
works fine, it doesn't cause the same error as counsel-find-library