KB35526: 'You do not have enough permissions on some common system objects...' error received when trying to create new attribute in MicroStrategy Developer 9.x.

SYMPTOM:
When attempting to create a new attribute in Strategy Developer 9.x, the following error is received:
 

 
Sample Code/Error
You do not have enough permissions on some common system objects. These permissions are needed to create a schema object. Please ask your administrator to grant you the right permissions.
 
The error is received even when the user attempting to create the attribute has all of the required privileges. 
 
CAUSE:
 
This error occurs because the 'Read Only Mode...' option is checked on the Schema menu.
 

 
ACTION:
To resolve this issue, uncheck the 'Read Only Mode...' option.  This will allow a new attribute to be created.