Error after melpa upgrade: invalid-function helm-build-sync-source

[geekinthesticks]

This happens when I try to open a file: C-x C-f. Backtrace is:

Debugger entered--Lisp error: (invalid-function helm-build-sync-source)
helm-build-sync-source("Find Files" :header-name #[257 "\211�P\207" [helm-find-files-doc-header] 3 "\n\n(fn NAME)"] :init #[0 "�\211��\303\304\305"\207" [helm-ff-auto-update-initial-value helm-ff-auto-update-flag helm-ff--auto-update-state helm-set-local-variable helm-in-file-completion-p t] 4 "\n\n(fn)"] :candidates helm-find-files-get-candidates :filtered-candidate-transformer helm-ff-sort-candidates :filter-one-by-one helm-ff-filter-candidate-one-by-one :persistent-action helm-find-files-persistent-action :persistent-help "Hit1 Expand Candidate, Hit2 or (C-u) Find file" :mode-line "<helm-find-files-map>[helm-ff-help]:Help <helm-map>[helm-select-action]:Act [helm-maybe-exit-minibuffer]/f1/f2/f-n:NthAct" :volatile t :keymap (keymap (right . helm-execute-persistent-action) (left . helm-find-files-up-one-level) (127 . #[0 "\302\303DC\216\304\305!\210\306\307!\307\211\310�\311"\203�

The relevant part of my .emacs is:

(require 'helm-config)
(helm-mode 1)
(global-set-key (kbd "C-c h") 'helm-mini)
(global-set-key (kbd "C-x C-f") 'helm-find-files)

[tuhdo]

You have to remove your previous Helm installation and reinstall again. See #602. This issue is currently being resolved: #617

Btw, your Helm configuration look bare. Maybe my guide can help you.

[geekinthesticks]

Thanks that fixed. My helm config isn't really that bare. I had just stripped it down to the minimum in case something in it was causing the problem

[amelio-vazquez-reina]

Since/if the problem is fixed, this should be closed.