This may not apply to you, but this is what happened to me last week.

I needed to make a change in the control source of a pick list. I copied all the current data to my test data folder and made that my database of record. I changed one field name to avoid future problems with a VFP reserved word [foreign -to- lforeign]. The view using this table was also changed so the view would not be broken. I modified the form with the pick list, recompiled the app and ran it against the test db [or so I thought]. I got the same error you did.

After a migrane headache, I finally opened the DE of the form and remembered that VFP hard-codes the *&!$% path to the DB with the table or view. The path to the working DB was still being used. Once I stripped the path [hacked the SCX] from all the cursors in all form DEs and recompiled, the correct versions of my table and view structures from my test DB were now being used.