[wp-testers] Fatal error: Call to undefined function mb_strlen()

[juma]

I had this error too and got around it without manual update (hadn't  
seen Steve's post) by commenting out line 80 in the wp-admin- 
header.php file. My blog name is less than 30 characters. After that,  
the automatic update worked.

-Lori


 > Fatal error: Call to undefined function mb_strlen() in
 > /home/goldendo/public_html/wp-admin/admin-header.php on line 80

I tried uploading the nightly build push at 10pm PST then again 12:30  
am PST
and I still can not access my admin panel. If I try to access the blog
itself, it shows a new blank blog and I got a success you installed a  
new
blog. When I check the database and I check the files, all of my  
existing
blog is intact but only the demo Hello WOrld post shows in the default
theme. The fatal error occurs when I try to access admin panel

 >
 > Message: 2
 > Date: Sun, 9 Nov 2008 12:58:06 -0700
 > From: Steve <stevish at gmail.com>

 >
 > A new nightly build has been pushed with this fix, so for others  
out there
 > with this problem, you'll have to manually upgrade (since you can't  
access
 > your admin panel) to
 > http://wordpress.org/nightly-builds/wordpress-latest.zip