helm-projectile-find-files

[justmytwospence]

I'm experiencing a lot of issues with helm-projectile-find files. Sometimes all the completions disappear as I am still narrowing them down, never to return, and sometimes even when I do get to execute on a completion, the file does not successfully open, giving me instead the error Wrong type argument: stringp, nil. I think it might(?) have something to do with helm-ff-auto-update, because sometimes when I press C-Backspace it gives me the error helm-ff-run-toggle-auto-update: Wrong type argument: consp, nil

[justmytwospence]

Heres another person who filed a similar issue in the projectile issue tracker: bbatsov/projectile#920

[justmytwospence]

Here is another stack trace. This happens after I:

1: Call projectile-persp-switch-project
2: Because projectile-switch-project-action is set to helm-projectile-find-file, this is called.
3: Files from the project pop up.
4. I filter it down my typing a few letters.
5. I move down a few candidates
6. I press enter on the one I want.
7. Error

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  helm-projectile-coerce-file("core/src/main/scala/com/uber/michelangelo/modeling/BatchModelEngine.scala")
  apply(helm-projectile-coerce-file "core/src/main/scala/com/uber/michelangelo/modeling/BatchModelEngine.scala")
  helm-funcall-with-source(((name . "Projectile files") (init #[0 "\301\302\303\300!\203
�\300 \202��\300\"\207" [#[nil "\300\301\302\217\207" [nil (projectile-current-project-files) ((error))] 3] helm-init-candidates-in-buffer global functionp] 4 "\n\n(fn)"]) (candidates . helm-candidates-in-buffer) (keymap keymap (8 . helm-find-files-up-one-level) (right . helm-next-source) (left . helm-previous-source) (127 . #[0 "\306\307\310\311\312\313\305!\314\"\315\316%DC\216\317\302!\210\320\304!\321\211\211����\301=\203+�\317\302!\210\322\202a�\323�\303\"\211\262�\203>�\317�A!\210\322\202a�\313��!\262�\324\300�\"\262�\325�!\203W�\317�!\210\202`�\326\327�\"��\244��\321\266\204\205i�\202��)\207" [(keymap (8 . helm-find-files-up-one-level) (right . helm-execute-persistent-action) (left . helm-find-files-up-one-level) (127 . #3) (18 . helm-find-files-down-last-level) (12 . helm-execute-persistent-action) (C-backspace . helm-ff-run-toggle-auto-update) (67108987 . helm-enlarge-window) (67108989 . helm-narrow-window) (3 keymap (64 . helm-ff-run-insert-org-link) (114 . helm-ff-run-find-file-as-root) (47 . helm-ff-run-find-sh-command) (112 . helm-ff-run-print-file) (1 . helm-ff-run-gnus-attach-files) (127 . helm-ff-run-toggle-auto-update) (104 . helm-ff-file-name-history) (61 . helm-ff-run-ediff-file) (88 . helm-ff-run-open-file-with-default-tool) (24 . helm-ff-run-open-file-externally) (15 . helm-ff-run-switch-other-frame) (111 . helm-ff-run-switch-other-window) (105 . helm-ff-run-complete-fn-at-point) (100 . helm-ff-persistent-delete) (103 . helm-ff-run-gid)) (27 keymap (114 . helm-ff-rotate-right-persistent) (108 . helm-ff-rotate-left-persistent) (105 . helm-ff-properties-persistent) (112 . helm-ff-run-switch-to-history) (61 . helm-ff-run-ediff-merge-file) (37 . helm-ff-run-query-replace-on-marked) (33 . helm-ff-run-eshell-command-on-file) (101 . helm-ff-run-switch-to-eshell) (75 . helm-ff-run-kill-buffer-persistent) (68 . helm-ff-run-delete-file) (72 . helm-ff-run-hardlink-file) (83 . helm-ff-run-symlink-file) (76 . helm-ff-run-load-file) (66 . helm-ff-run-byte-compile-file) (67 . helm-ff-run-copy-file) (82 . helm-ff-run-rename-file) (46 . helm-ff-run-etags) (103 keymap ... ... ... ... ...)) 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(action ("Find File" . helm-find-file-or-marked) ("Find file in Dired" . helm-point-file-in-dired) ("View file" . view-file) ("Checksum File" . helm-ff-checksum) ("Query replace fnames on marked" . helm-ff-query-replace-on-marked) ("Query replace contents on marked" . helm-ff-query-replace) ("Query replace regexp contents on marked" . helm-ff-query-replace-regexp) ("Serial rename files" . helm-ff-serial-rename) ("Serial rename by symlinking files" . helm-ff-serial-rename-by-symlink) ("Serial rename by copying files" . helm-ff-serial-rename-by-copying) ("Open file with default tool" . helm-open-file-with-default-tool) ("Find file in hex dump" . hexl-find-file) ("Insert as org link `C-c @'" . helm-files-insert-as-org-link) ("Open file externally `C-c C-x, C-u to choose'" . helm-open-file-externally) ("Grep File(s) `C-s, C-u Recurse'" . helm-find-files-grep) ("Grep current directory with AG" . helm-find-files-ag) ("Git grep" . helm-ff-git-grep) ("Zgrep File(s) `M-g z, C-u Recurse'" . helm-ff-zgrep) ("Gid" . helm-ff-gid) ("Switch to Eshell `M-e'" . helm-projectile-switch-to-eshell) ("Etags `M-., C-u reload tag file'" . helm-projectile-ff-etags-select-action) ("Eshell command on file(s) `M-!, C-u take all marked as arguments.'" . helm-projectile-find-files-eshell-command-on-file-action) ("Find file as root `C-c r'" . helm-find-file-as-root) ("Find alternate file" . find-alternate-file) ("Ediff File `C-='" . helm-find-files-ediff-files) ("Ediff Merge File `C-c ='" . helm-find-files-ediff-merge-files) ("Delete File(s) `M-D'" . helm-delete-marked-files) ("Copy file(s) `M-C, C-u to follow'" . helm-find-files-copy) ("Rename file(s) `M-R, C-u to follow'" . helm-find-files-rename) ("Symlink files(s) `M-S, C-u to follow'" . helm-find-files-symlink) ("Relsymlink file(s) `C-u to follow'" . helm-find-files-relsymlink) ("Hardlink file(s) `M-H, C-u to follow'" . helm-find-files-hardlink) ("Find file other window `C-c o'" . helm-find-files-other-window) ("Switch to history `M-p'" . helm-find-files-switch-to-hist) ("Find file other frame `C-c C-o'" . find-file-other-frame) ("Print File `C-c p, C-u to refresh'" . helm-ff-print) ("Locate `C-x C-f, C-u to specify locate db'" . helm-ff-locate) ("Create Dired buffer from files `C-c f'" . helm-projectile-dired-files-new-action) ("Add files to Dired buffer `C-c a'" . helm-projectile-dired-files-add-action)) (help-message . helm-ff-help-message) (filtered-candidate-transformer helm-fuzzy-matching-default-sort-fn helm-fuzzy-highlight-matches) (volatile) (match identity) (fuzzy-match) (coerce . helm-projectile-coerce-file) (mode-line . 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(2 . helm-resume-list-buffers-after-quit) (98 . helm-resume-previous-session-after-quit) (6 . helm-quit-and-find-file)) (11 . helm-previous-line) (67108896 . helm-toggle-visible-mark) (0 . helm-toggle-visible-mark) (C-M-up . helm-scroll-other-window-down) (C-M-down . helm-scroll-other-window) ...) 127 helm-ff-delete-char-backward nil nil helm-ff-delete-char-backward--exit-fn funcall make-byte-code 0 "\300\205��\300 \207" vconcat vector [] 1 "\n\n(fn)" call-interactively read-key nil t assoc lookup-key commandp mapcar identity last-command-event unread-command-events] 7 "\n\n(fn)" nil]) (18 . helm-find-files-down-last-level) (12 . helm-execute-persistent-action) (C-backspace . helm-ff-run-toggle-auto-update) (67108987 . helm-enlarge-window) (67108989 . helm-narrow-window) (3 keymap (97 . #[nil "\300\301!\207" [helm-exit-and-execute-action helm-projectile-dired-files-add-action] 2 nil nil]) (102 . #[nil "\300\301!\207" [helm-exit-and-execute-action helm-projectile-dired-files-new-action] 2 nil nil]) (64 . helm-ff-run-insert-org-link) (114 . helm-ff-run-find-file-as-root) (47 . helm-ff-run-find-sh-command) (112 . helm-ff-run-print-file) (1 . helm-ff-run-gnus-attach-files) (127 . helm-ff-run-toggle-auto-update) (104 . helm-ff-file-name-history) (61 . helm-ff-run-ediff-file) (88 . helm-ff-run-open-file-with-default-tool) (24 . helm-ff-run-open-file-externally) (15 . helm-ff-run-switch-other-frame) (111 . helm-ff-run-switch-other-window) (105 . helm-ff-run-complete-fn-at-point) (100 . helm-ff-persistent-delete) (103 . helm-ff-run-gid)) (27 keymap (114 . helm-ff-rotate-right-persistent) (108 . helm-ff-rotate-left-persistent) (105 . helm-ff-properties-persistent) (112 . helm-ff-run-switch-to-history) (61 . helm-ff-run-ediff-merge-file) (37 . helm-ff-run-query-replace-on-marked) (33 . #[nil "\300\301!\207" [helm-exit-and-execute-action helm-projectile-find-files-eshell-command-on-file-action] 2 nil nil]) (101 . #[nil "\300\301!\207" [helm-exit-and-execute-action helm-projectile-switch-to-eshell] 2 nil nil]) (75 . helm-ff-run-kill-buffer-persistent) (68 . helm-ff-run-delete-file) (72 . helm-ff-run-hardlink-file) (83 . helm-ff-run-symlink-file) (76 . helm-ff-run-load-file) (66 . helm-ff-run-byte-compile-file) (67 . helm-ff-run-copy-file) (82 . helm-ff-run-rename-file) (46 . #[nil "\300\301!\207" [helm-exit-and-execute-action helm-projectile-ff-etags-select-action] 2 nil nil]) (103 keymap (103 . helm-ff-run-git-grep) (97 . helm-ff-run-grep-ag) (122 . helm-ff-run-zgrep) (112 . helm-ff-run-pdfgrep) (115 . helm-ff-run-grep))) (19 . helm-ff-run-grep) (24 keymap (22 . helm-ff-run-find-alternate-file) (114 keymap (98 . helm-find-files-toggle-to-bookmark) (109 . helm-ff-bookmark-set)) (4 . helm-ff-run-browse-project) (6 . helm-ff-run-locate)) (29 . helm-ff-run-toggle-basename) keymap (21 . helm-previous-page) (4 . helm-next-page) (escape . helm-keyboard-quit) (f13 lambda nil (interactive) (helm-select-nth-action 12)) (f12 lambda nil (interactive) (helm-select-nth-action 11)) (f11 lambda nil (interactive) (helm-select-nth-action 10)) (f10 lambda nil (interactive) (helm-select-nth-action 9)) (f9 lambda nil (interactive) (helm-select-nth-action 8)) (f8 lambda nil (interactive) (helm-select-nth-action 7)) (f7 lambda nil (interactive) (helm-select-nth-action 6)) (f6 lambda nil (interactive) (helm-select-nth-action 5)) (f5 lambda nil (interactive) (helm-select-nth-action 4)) (f4 lambda nil (interactive) (helm-select-nth-action 3)) (f3 lambda nil (interactive) (helm-select-nth-action 2)) (f2 lambda nil (interactive) (helm-select-nth-action 1)) (menu-bar keymap (help-menu keymap (describe keymap (describe-mode . helm-help)))) (help keymap (109 . helm-help)) (f1 lambda nil (interactive) (helm-select-nth-action 0)) (8 keymap (109 . helm-help) (104 . undefined) (8 . undefined) (4 . helm-enable-or-switch-to-debug)) (20 . helm-toggle-resplit-and-swap-windows) (C-tab . undefined) (67108897 . helm-toggle-suspend-update) (3 keymap (57 lambda nil (interactive) (helm-execute-selection-action-at-nth 9)) (56 lambda nil (interactive) (helm-execute-selection-action-at-nth 8)) (55 lambda nil (interactive) (helm-execute-selection-action-at-nth 7)) (54 lambda nil (interactive) (helm-execute-selection-action-at-nth 6)) (53 lambda nil (interactive) (helm-execute-selection-action-at-nth 5)) (52 lambda nil (interactive) (helm-execute-selection-action-at-nth 4)) (51 lambda nil (interactive) (helm-execute-selection-action-at-nth 3)) (50 lambda nil (interactive) (helm-execute-selection-action-at-nth 2)) (49 lambda nil (interactive) (helm-execute-selection-action-at-nth 1)) (63 . helm-help) (62 . helm-toggle-truncate-line) (21 . helm-refresh) (6 . helm-follow-mode) (9 . helm-copy-to-buffer) (11 . helm-kill-selection-and-quit) (25 . helm-yank-selection) (4 . helm-delete-current-selection) (45 . helm-swap-windows)) (67108987 . helm-enlarge-window) (67108989 . helm-narrow-window) (19 . undefined) (18 . undefined) (23 . helm-yank-text-at-point) (24 keymap (57 lambda nil (interactive) (helm-execute-selection-action-at-nth -9)) (56 lambda nil (interactive) (helm-execute-selection-action-at-nth -8)) (55 lambda nil (interactive) (helm-execute-selection-action-at-nth -7)) (54 lambda nil (interactive) (helm-execute-selection-action-at-nth -6)) (53 lambda nil (interactive) (helm-execute-selection-action-at-nth -5)) (52 lambda nil (interactive) (helm-execute-selection-action-at-nth -4)) (51 lambda nil (interactive) (helm-execute-selection-action-at-nth -3)) (50 lambda nil (interactive) (helm-execute-selection-action-at-nth -2)) (49 lambda nil (interactive) (helm-execute-selection-action-at-nth -1)) (2 . helm-resume-list-buffers-after-quit) (98 . helm-resume-previous-session-after-quit) (6 . helm-quit-and-find-file)) (11 . helm-previous-line) (67108896 . helm-toggle-visible-mark) (0 . helm-toggle-visible-mark) (C-M-up . helm-scroll-other-window-down) ...) (action ("Find File" . helm-find-file-or-marked) ("Find file in Dired" . helm-point-file-in-dired) ("View file" . view-file) ("Checksum File" . helm-ff-checksum) ("Query replace fnames on marked" . helm-ff-query-replace-on-marked) ("Query replace contents on marked" . helm-ff-query-replace) ("Query replace regexp contents on marked" . helm-ff-query-replace-regexp) ("Serial rename files" . helm-ff-serial-rename) ("Serial rename by symlinking files" . helm-ff-serial-rename-by-symlink) ("Serial rename by copying files" . helm-ff-serial-rename-by-copying) ("Open file with default tool" . helm-open-file-with-default-tool) ("Find file in hex dump" . hexl-find-file) ("Insert as org link `C-c @'" . helm-files-insert-as-org-link) ("Open file externally `C-c C-x, C-u to choose'" . helm-open-file-externally) ("Grep File(s) `C-s, C-u Recurse'" . helm-find-files-grep) ("Grep current directory with AG" . helm-find-files-ag) ("Git grep" . helm-ff-git-grep) ("Zgrep File(s) `M-g z, C-u Recurse'" . helm-ff-zgrep) ("Gid" . helm-ff-gid) ("Switch to Eshell `M-e'" . helm-projectile-switch-to-eshell) ("Etags `M-., C-u reload tag file'" . helm-projectile-ff-etags-select-action) ("Eshell command on file(s) `M-!, C-u take all marked as arguments.'" . helm-projectile-find-files-eshell-command-on-file-action) ("Find file as root `C-c r'" . helm-find-file-as-root) ("Find alternate file" . find-alternate-file) ("Ediff File `C-='" . helm-find-files-ediff-files) ("Ediff Merge File `C-c ='" . helm-find-files-ediff-merge-files) ("Delete File(s) `M-D'" . helm-delete-marked-files) ("Copy file(s) `M-C, C-u to follow'" . helm-find-files-copy) ("Rename file(s) `M-R, C-u to follow'" . helm-find-files-rename) ("Symlink files(s) `M-S, C-u to follow'" . helm-find-files-symlink) ("Relsymlink file(s) `C-u to follow'" . helm-find-files-relsymlink) ("Hardlink file(s) `M-H, C-u to follow'" . helm-find-files-hardlink) ("Find file other window `C-c o'" . helm-find-files-other-window) ("Switch to history `M-p'" . helm-find-files-switch-to-hist) ("Find file other frame `C-c C-o'" . find-file-other-frame) ("Print File `C-c p, C-u to refresh'" . helm-ff-print) ("Locate `C-x C-f, C-u to specify locate db'" . helm-ff-locate) ("Create Dired buffer from files `C-c f'" . helm-projectile-dired-files-new-action) ("Add files to Dired buffer `C-c a'" . helm-projectile-dired-files-add-action)) (help-message . helm-ff-help-message) (filtered-candidate-transformer helm-fuzzy-matching-default-sort-fn helm-fuzzy-highlight-matches) (volatile) (match identity) (fuzzy-match) (coerce . helm-projectile-coerce-file) (mode-line . "\\<helm-read-file-map>\\[helm-help]:Help C/\\[helm-cr-empty-string]:Empty \\<helm-map>\\[helm-select-action]:Act \\[helm-maybe-exit-minibuffer]/f1/f2/f-n:NthAct \\[helm-toggle-suspend-update]:Tog.suspend") (header-line . "C-l: Find File (keeping session)") (dont-plug helm-compile-source--candidates-in-buffer helm-compile-source--multi-match helm-compile-source--persistent-help helm-compile-source--migemo) (matchplugin) (data . #[nil "\300\301\302\217\207" [nil (projectile-current-project-files) ((error))] 3]) (get-line . buffer-substring-no-properties) (search helm-mm-exact-search helm-mm-search helm-candidates-in-buffer-search-default-fn helm-fuzzy-search)))
  helm-execute-selection-action-1()
  helm-execute-selection-action()
  #[0 "\311\211\211\211\305\206\n��&�&�'�(�)�*\312\313�+\"\314\315\316\317\320\321��!\322\"\323\324%DC\216\325\303\301\307\300$\210\326�&!\210�,\203?�\327\330!\210\331\332\333\"\210\331\332\334\"\210\335\336!\210\314\337DC\216\340\302\301\304\303\306\307\310&�\210*\210�'?\205g�\341 \335\342\343\344\345\"P!\210-\207" [(helm-source-projectile-dired-files-list helm-source-projectile-files-list) nil "[michelangelo] Find file: " nil nil "*helm projectile*" nil nil nil nil mapcar #[257 "\211�JB\207" [] 3 "\n\n(fn V)"] funcall make-byte-code 0 "\300\301\211�:\203���@\262��\211A\262�\242\262�\211�L\210�A\262�\202��\266�\302\303!\207" vconcat vector [nil helm-log "restore variables"] 5 "\n\n(fn)" helm-initialize helm-display-buffer helm--remap-mouse-mode 1 add-hook post-command-hook helm--maybe-update-keymap helm--update-header-line helm-log "show prompt" #[0 "\300 \207" [helm-cleanup] 1 "\n\n(fn)"] helm-read-pattern-maybe helm-execute-selection-action "[End session] " make-string 41 45 helm-buffer helm-quit helm-in-persistent-action helm-current-source helm-source-name helm-restored-variables helm-prevent-escaping-from-minibuffer] 9 "\n\n(fn)"]()
  funcall(#[0 "\311\211\211\211\305\206\n��&�&�'�(�)�*\312\313�+\"\314\315\316\317\320\321��!\322\"\323\324%DC\216\325\303\301\307\300$\210\326�&!\210�,\203?�\327\330!\210\331\332\333\"\210\331\332\334\"\210\335\336!\210\314\337DC\216\340\302\301\304\303\306\307\310&�\210*\210�'?\205g�\341 \335\342\343\344\345\"P!\210-\207" [(helm-source-projectile-dired-files-list helm-source-projectile-files-list) nil "[michelangelo] Find file: " nil nil "*helm projectile*" nil nil nil nil mapcar #[257 "\211�JB\207" [] 3 "\n\n(fn V)"] funcall make-byte-code 0 "\300\301\211�:\203���@\262��\211A\262�\242\262�\211�L\210�A\262�\202��\266�\302\303!\207" vconcat vector [nil helm-log "restore variables"] 5 "\n\n(fn)" helm-initialize helm-display-buffer helm--remap-mouse-mode 1 add-hook post-command-hook helm--maybe-update-keymap helm--update-header-line helm-log "show prompt" #[0 "\300 \207" [helm-cleanup] 1 "\n\n(fn)"] helm-read-pattern-maybe helm-execute-selection-action "[End session] " make-string 41 45 helm-buffer helm-quit helm-in-persistent-action helm-current-source helm-source-name helm-restored-variables helm-prevent-escaping-from-minibuffer] 9 "\n\n(fn)"])
  helm-internal((helm-source-projectile-dired-files-list helm-source-projectile-files-list) nil "[michelangelo] Find file: " nil nil "*helm projectile*" nil nil nil)
  apply(helm-internal ((helm-source-projectile-dired-files-list helm-source-projectile-files-list) nil "[michelangelo] Find file: " nil nil "*helm projectile*" nil nil nil))
  helm((helm-source-projectile-dired-files-list helm-source-projectile-files-list) nil "[michelangelo] Find file: " nil nil "*helm projectile*" nil nil nil)
  apply(helm ((helm-source-projectile-dired-files-list helm-source-projectile-files-list) nil "[michelangelo] Find file: " nil nil "*helm projectile*" nil nil nil))
  helm(:sources (helm-source-projectile-dired-files-list helm-source-projectile-files-list) :buffer "*helm projectile*" :prompt "[michelangelo] Find file: ")
  helm-projectile-find-file()
  projectile-switch-project-by-name("~/michelangelo/")
  (let ((frame (selected-frame))) (persp-switch name) (projectile-switch-project-by-name project-to-switch) (if (not (equal frame (selected-frame))) (progn (let ((old-frame (selected-frame)) (old-buffer (current-buffer))) (unwind-protect (progn (select-frame frame (quote norecord)) (persp-kill name)) (if (frame-live-p old-frame) (progn (select-frame old-frame ...))) (if (buffer-live-p old-buffer) (progn (set-buffer old-buffer))))))))
  (cond ((and persp (not (equal persp persp-curr))) (persp-switch name)) ((not persp) (let ((frame (selected-frame))) (persp-switch name) (projectile-switch-project-by-name project-to-switch) (if (not (equal frame (selected-frame))) (progn (let ((old-frame ...) (old-buffer ...)) (unwind-protect (progn ... ...) (if ... ...) (if ... ...))))))))
  (let* ((name (file-name-nondirectory (directory-file-name project-to-switch))) (persp (gethash name perspectives-hash))) (cond ((and persp (not (equal persp persp-curr))) (persp-switch name)) ((not persp) (let ((frame (selected-frame))) (persp-switch name) (projectile-switch-project-by-name project-to-switch) (if (not (equal frame (selected-frame))) (progn (let (... ...) (unwind-protect ... ... ...))))))))
  projectile-persp-switch-project("~/michelangelo/")
  call-interactively(projectile-persp-switch-project nil nil)
  command-execute(projectile-persp-switch-project)

[justmytwospence]

I've figured out a little bit more about the disappearance of the candidates as well. After lots of experimenting, it turns out that I only have about 4-5 seconds to narrow candidates after calling projectile-persp-switch-project and then choosing a project. If I leave the candidates buffer for 6 seconds, all the candidates disappear as soon as I type a single character. Even if I have done narrowing with a few characters right after the candidates appeared, waiting past that ~6 seconds and trying to narrow more causes all the candidates to disapppear.

[justmytwospence]

Just one more potentially enlightening update. I see the same disappearing candidates issue when I disable helm-projectile and just setq projectile-completion-system 'helm

[xiongtx]

PR #66 eliminates helm-projectile-coerce-file, so this error should no longer occur.