E763: Word characters differ between spell files

[glts]

(I posted this in vim_use a week ago but got no response. Trying again
here, I would be thankful if anybody can try to reproduce this.)

Hello list

I am trying to use two spelling languages at the same time:

:set spelllang=en_gb,de_ch
:set spell

Since the de_ch spelllang isn't included by default, Vim downloads and
installs it automatically at ~/.vim/spell/de.utf-8.spl (also the
suggestions file at ~/.vim/spell/de.utf-8.sug).

Spell-checking does work fine for both languages, however, every time I
enable spell-checking I get

E763: Word characters differ between spell files

The help suggests doing :mkspell on the word lists but these are not
included with Vim. Can you help me fix this? I'm running Vim 7.3.429 on
Ubuntu 12.04.

Thank you, glts

[Bram Moolenaar]

Try replacing the en_gb spell file that you installed long ago with one
downloaded from the server now. The files on the site have been
updated some time ago to fix a mistake.

Unfortunately there is no "update runtime files" command yet.

--
Q: What is a patch 22?
A: A patch you need to include to make it possible to include patches.

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
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[glts]

On Thursday, November 22, 2012 10:18:42 PM UTC+1, Bram Moolenaar wrote:
> Try replacing the en_gb spell file that you installed long ago with
> one downloaded from the server now. The files on the site have been
> updated some time ago to fix a mistake.

I was using the "vim-gnome" package on Linux Ubuntu 12.04; I didn't
think of updating the runtime files first.
Anyway, that did it, problem solved, thank you, Bram!

[Alexey]

I had this error in terminal vim, while MacVim.app was fine.

I fixed it by copying some English spell files from MacVim.app/Contents/Resources/vim/runtime/spell to ~/.vim/spell

I decided to post this solution because it worked for me, while i could not try Bram's suggestion because i am not familiar enough with Vim resources (which server? which file to replace? i did not seem to have any English spell files in ~/.vim/spell).