Error message is: global default 'vector' is invalid for field skin.

I have no clue how Vector would suddenly be considered an invalid skin, that's very strange.

Weiiiiird. Does it occur on other installations of 1.17?

appears to be working now.

Was anything committed to fix this?

I find it *very* hard to believe this magically resolved itself.

pdhanda wrote:

It was a change in WikiEditor and Vector config params that took effect in 1.17.
Should be fixed now.

wiel wrote:

Although I'm running 1.19, this error still exists. What are these parms you're talking baout? Can they be set by the admin?

wiel, your problem is probably a different one. "Internal error" is just a php fatal error. Please look at the php error log for hints.
Also, you may need to update some of your extensions.

wiel wrote:

Looks pretty much the same though:

Global default 'tct' is invalid for field skin

Backtrace:

#0 [path to root]/httpdocs/includes/Preferences.php(1217): Preferences::getPreferences(Object(User), Object(RequestContext))
#1 [path to root]/httpdocs/includes/specials/SpecialPreferences.php(61): Preferences::getFormObject(Object(User), Object(RequestContext))
#2 [path to root]/httpdocs/includes/SpecialPageFactory.php(476): SpecialPreferences->execute(NULL)
#3 [path to root]/httpdocs/includes/Wiki.php(263): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
#4 [path to root]/httpdocs/includes/Wiki.php(593): MediaWiki->performRequest()
#5 [path to root]/httpdocs/includes/Wiki.php(503): MediaWiki->main()
#6 [path to root]/httpdocs/index.php(58): MediaWiki->run()
#7 {main}

Do you have $wgDefaultSkin = 'tct'; in LocalSettings.php ?

wiel wrote:

(In reply to comment #9)

Do you have $wgDefaultSkin = 'tct'; in LocalSettings.php ?

Yes.

I thought I had found the reason of the error, but it didn't work:

I had copied the Monobook directory to a new directory 'tct' to be able to change to a new layout. But I forgot to make tct versions of Monobook.php/Monobook.deps.php and edit it, replacing all references from Monobook to tct. I did so now but to no avail.

BTW, thanks for reacting so fast!

I guess you didn't modify things enough. See http://www.mediawiki.org/wiki/Manual:Skinning