WordPress MU

Just installed WPMU and I'm having some trouble with creating or deleting blogs.

• Creating a blog leads to a blank screen. No confirmation. Returning to dashboard and refreshing shows a new blog, but it cannot be visited ("Blog installed incorrectly. Contact sysadmin.") and shows a
  

  "Warning: Invalid argument supplied for foreach() in /home/content/f/o/o/mydomain/html/wp-admin/wpmu-blogs.php on line 147.

• I CAN delete blogs, but get an error message whenever I do:

  

  Warning: reset() [function.reset]: Passed variable is not an array or object in /home/content/f/o/o/mydomain/html/wp-admin/includes/mu.php on line 50

  Warning: Cannot modify header information - headers already sent by (output started at /home/content/f/o/o/mydomain/html/wp-admin/includes/mu.php:50) in /home/content/f/o/o/mydomain/html/wp-includes/pluggable.php on line 865"

  I suspect these are database problems, but I can't seem to figure it out. Any ideas?

What kind of setup, subdomains or subfolders?
Did the tables get created for the new blogs? Does the db user have ALL permissions on the db?
Where did you create them from, the backend or the signup page?

Subdomains.

Tables did not appear to be created, though I don't know exactly what to look for it seems that the database looks the same as when there was one blog.

I created them from the backend.

Finally, I use GoDaddy unfortunately and they do not really have much configuration when you set up a database. Apparently they automatically create only one user who has all permissions, which I used for WPMU, but I did not do anything to configure this. I did not check something called "Allow Direct Database Access."

Does any of that help?

If I recall well, for Godaddy, you need a “Deluxe” hosting plan and need to purchase a Dedicated IP Address so you can add a wildcard record to host.

Yep. If you don't have the right stuff at GD, MU won't work right.

I actually do have all of those things at GD, but it still won't work. Given they won't let me actually see database users, let alone create them to my specifications, I moved to a different host.

All of my problems were magically solved. Thanks for the support--perhaps there should be some kind of warning that it's 10x more difficult to get WPMU to work on GoDaddy. A lot of people seem to have problems.

I probably should've done more research though. Thanks again!

Hello. I do get exactly the same error. I am hosted on hostgator. Wordpress is freshly installed, domain is clean, i am planning to make a few blogs on it.
The db username has all permissions. The subdomain is swineflu.cipiworld.net
I also have set up a subdomain named *.cipiworld.net - i guess it is mandatory , relating to a DNS issue i do not technically understand.
What am i doing wrong?
Cheers

Here is the php with the 147 line error:
http://cipiworld.net/wpmu-blogs.txt

What error?

As i have said, i get exactly the same errors like the person starting this thread:

Warning: Invalid argument supplied for foreach() in /home/cipcip/public_html/cipiworld.net/wp-admin/wpmu-blogs.php on line 147

and when deleting:

Warning: reset() [function.reset]: Passed variable is not an array or object in /home/cipcip/public_html/cipiworld.net/wp-admin/includes/mu.php on line 50

Warning: Cannot modify header information - headers already sent by (output started at /home/cipcip/public_html/cipiworld.net/wp-admin/includes/mu.php:50) in /home/cipcip/public_html/cipiworld.net/wp-includes/pluggable.php on line 865

SOLVED. The problem was the wildcard subdomain, it was set up incorectly. It should have been set to point to public_html/cipiworld.net instead of just public_html. I have corrected that be removing it and re-adding it in the cpanel.

I'm getting the same error... hoping you all can help me track it down..

can delete blogs but when trying to create new blogs from the backend as admin i get the dreaded:

"The blog you have requested is not installed properly. Please contact the system administrator."

getting this error:
Warning: Invalid argument supplied for foreach() in /home/.zwingli/camyden/c/wp-admin/wpmu-blogs.php on line 149

was able to add blogs as of yesterday.. not sure what changed.. have not added any new plugins or anything...

Even me, man -- This MU isn't as easy as it seems. I tried tweaking wpmu-blogs.php but didn't help me at first.. still trying to find an working solution. Else have to revert back to single blog, I hope someone from this forum can help fix the solution.

I had same problem, you need to deactivate buddypress before create a new blog, after that you ca reactivate without any problems :D

WPMU 2.9.2 + bp 1.2