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I don't use dired mode too often, but was trying to practice with it a bit. So I created a few empty practice text files and marked them with the usual dired shortcut key. Then I tried to rename the files using the "R" command--in order to move the files to a new folder. I get this odd error and the operation does not succeed.

apply: Wrong number of arguments: (8 . 8), 10 [3 times]

I ran into the same error when I tried to do a copy using the "C" command. But interestingly enough, the problem does not occur when I tried to do a delete with "D". Delete did work. So it seems like somewhere the apply function is being used incorrectly.

I am using emacs version 25.3 and Spacemacs version 0.200.13.x on ubuntu linux 16.04 LTS.

Does anyone have a sense of why this error is occurring? Since dired is part of the emacs core, I imagine there might be some conflict with a different package or something. I checked the spacemacs github repo issues list, but did not see any problems mentioned. Any help would be appreciated.

UPDATED

As per Phil's suggestion, here is the stacktrace:

Debugger entered--Lisp error: (wrong-number-of-arguments (8 . 8) 10)
  helm-read-file-name-handler-1("Rename jarrett-iccv-09.pdf to: " read-file-name-internal file-exists-p nil "~/Downloads/" file-name-history nil nil "dired-do-rename" "*helm-mode-dired-do-rename*")
  apply(helm-read-file-name-handler-1 ("Rename jarrett-iccv-09.pdf to: " read-file-name-internal file-exists-p nil "~/Downloads/" file-name-history nil nil "dired-do-rename" "*helm-mode-dired-do-rename*"))
  helm--completing-read-default("Rename jarrett-iccv-09.pdf to: " read-file-name-internal file-exists-p nil "~/Downloads/" file-name-history nil nil)
  apply(helm--completing-read-default ("Rename jarrett-iccv-09.pdf to: " read-file-name-internal file-exists-p nil "~/Downloads/" file-name-history nil nil))
  #f(advice-wrapper :override completing-read-default helm--completing-read-default)("Rename jarrett-iccv-09.pdf to: " read-file-name-internal file-exists-p nil "~/Downloads/" file-name-history nil nil)
  completing-read("Rename jarrett-iccv-09.pdf to: " read-file-name-internal file-exists-p nil "~/Downloads/" file-name-history nil)
  read-file-name-default("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil nil nil nil)
  read-file-name("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil nil nil nil)
  ido-read-file-name("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil nil nil nil)
  apply(ido-read-file-name ("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil nil nil nil))
  #f(advice-wrapper :override #f(advice-wrapper :override read-file-name-default helm--generic-read-file-name) ido-read-file-name)("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil nil nil nil)
  read-file-name("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil)
  apply(read-file-name ("Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil))
  dired-mark-pop-up(nil move ("jarrett-iccv-09.pdf") read-file-name "Rename jarrett-iccv-09.pdf to: " "/home/krishnab/Downloads/" nil)
  dired-mark-read-file-name("Rename %s to: " "/home/krishnab/Downloads/" move nil ("jarrett-iccv-09.pdf") nil)
  dired-do-create-files(move dired-rename-file "Move" nil t "Rename")
  dired-do-rename(nil)
  funcall-interactively(dired-do-rename nil)
  call-interactively(dired-do-rename nil nil)
  command-execute(dired-do-rename)

UPDATED 2

There does seem to be a similar issue reported under the helm github repository. Seems that helm and ido mode are not compatible.

https://github.com/emacs-helm/helm/issues/1819

There is also a reference to this in the helm wiki.

https://github.com/emacs-helm/helm/wiki#use-helm-mode-and-ido-mode

I tried some of their suggestions, like adding 

'(helm-completing-read-handlers-alist
   (quote
    ((find-file-read-only . ido)
     (find-alternate-file . nil))

But still getting the same error.

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1 回答 1

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乍一看，这在我看来像是当前版本的 helm 中的一个错误。

从 MELPA 安装 helm，我看到它helm-read-file-name-handler-1接受 8 个参数：

(helm-read-file-name-handler-1 PROMPT DIR DEFAULT-FILENAME MUSTMATCH INITIAL PREDICATE NAME BUFFER)

根据堆栈跟踪，helm--completing-read-default保证用 10 调用它。

helm--completing-read-default查找dired-do-rename并helm-completing-read-handlers-alist发现它映射到helm-read-file-name-handler-1. 然后它将处理程序识别为命名空间作为 helm 函数，并在此基础上使用 2 个额外的 helm 特定参数调用它。

默认情况下，helm-completing-read-handlers-alist包括：

(dired-do-rename . helm-read-file-name-handler-1)
(dired-do-copy . helm-read-file-name-handler-1)
(dired-do-symlink . helm-read-file-name-handler-1)
(dired-do-relsymlink . helm-read-file-name-handler-1)
(dired-do-hardlink . helm-read-file-name-handler-1))

所以这个问题会影响所有这些可怕的命令。

您可以通过删除所有这些来解决此问题。

例如M-x customize-option RET helm-completing-read-handlers-alist

于 2018-08-28T23:44:06.443 回答