Help - VC for VS 2015

I keep getting the following error:   error COBCH0008 : Unknown copybook library-data.cpy specified
C:\Users\John\Desktop\MFcourseware\COBOLClass_Studio\COBOLClass\Projects\18_02_Patron_Menu\PatronEntry\Form1.cbl (64,20-21) : error COBCH0014 : Invalid operand

I have put the copybook everywhere I can think of and pointed to it in Project, properties COPYBOOKS. what is the default path?