I had upgraded my CRM 3 to version 4. After the upgrade we are unable to add
or delete entities and attributes. I have turned on developer errors, but
everytime we only receive a generic "an error has occured" message. So I then
wiped the box clean from the OS up and then installed a clean version of CRM
4. I then imported the custom entities that were developed on CRM 3 and
upgraded to CRM 4 previously. Everything was working fine until recently, but
now we are having the same problem again. Has anyone had this problem before
and what was done to resolve it?