Thread:Extension talk:GoogleAppsAuthentification/Nonce error "OpenID authentication failed: Nonce already used or out of range"/reply (3)

Oh yeah problem solved.

1) I just noticed that the tmp folder that came with the OpenID library (as linked from the wiki page) was actually NOT empty. And so when I am setting the correct permissions to it, I need to recursively chmod-ing it. That is, " chmod -R 777 tmp " instead of " chmod 777 tmp ".

2) Once I have made the #1 change, I encountered another error of "undefined function: FileCache::singleton on line 2726 of includes/GlobalFunctions.php", even when I used a new browser to browse the wiki. My mediawiki was an old one, 1.14 version. I didn't touch any configuration concerning FileCache (and it should default to "false" ?) The problem doesn't go away even I switch on or off FileCache in LocalSettings.php. My solution was to (dirtily) amend GlobalFunctions.php and comment out that if block and use only the else block. (very dirty indeed!)