"Error using Window Document Operator"
'Mandatory input missing at port Window Document.document 2.'
It suggests I input an operator that creates a document; when I do, and attach that to the next 'doc' that has appeared, the error message becomes:
'Mandatory input missing at port Window Document.document 3.'
This just keeps going; every time I try to fix the problem by inserting another operator that creates a document, a new 'doc' connection appears and the error message remains, one document number higher than the error message before. I can't figure out what the problem is; any suggestions would be much appreciated!