Обсуждение: Relation not gfound in view Error

I created two tables populated both with valid data including forgien key values.
I create a view that uses both of these tables in a view that.  When I select from the view, I get this error
 
ERROR: relation "vwsinglelevellist" does not exist
SQL state: 42P01

But when I run the defination as a simple select statement, I do not get an error.
 
Any ideas?
 
TIA
Michael