I am using schema workbench to create a cube but under my Dimension Usage, I cannot see or list out all my fields of thefact table even though I can get a successfull connection of my database. I do not understand what is the meaning of "Source ' ' does not exist as Shared Dimension of Schema" as it exist in all my Dimension Usage. Does is related to this problem? I believe this is the reason of the MDX query also, (I cannot connect to the schema. How can I resolved this problem?