February 14, 2012
Drupal error message: "call_user_func_array() expects parameter 1 to be a valid callback"
After doing a series of updates to a Drupal installation, the following error appeared on all admin pages and edit pages:
"call_user_func_array() expects parameter 1 to be a valid callback, function 'clients_access_callback "
Other symptoms included that the database could not be updated to complete some of the following updates, and search no longer worked.
To resolve this error, truncate the cache table in the database. You may also need to disable the theme then enable it again.
This problem may be caused by removing modules or themes from the modules folder before disabling them in the modules or themes GUI.
Mandelbulb 3D: e_3Dtess variations Parameter Pack
For the Mandelbulb 3D enthusiasts out there, I'm putting up some of my best images along with their formulas. Click here to see the complete list.
Here's a parameter pack chock full of great starting points for your creations. These are variations on parameters containing the e_3DTess formula. If you do something nice with them, drop me a line! I'm ellenm1 on Flickr, or ellen@thedesignspace.net.
Download them now:
3dtessParamPack1.zip
