creating pdf through indesign- error message

I am trying to make a pdf through indesign. I keep getting the below message through notepad. I think it wants me to relink something or a file is missing but i just dont know what it wants.. can any help me?

Thanks so much!

%%[ Error: typecheck; OffendingCommand: setglobal ]%%

Stack:

0

0

false

%%[ Flushing: rest of job (to end-of-file) will be ignored ]%%

%%[ Warning: PostScript error. No PDF file produced. ] %%