Compile throws a “User-defined type not defined” error but does not go to the offending line of code

Question

Symptoms

This is a symptom specifically when compiling an Excel VBA project. The following error occurs:

User-defined type not defin

Answer 1

Possible solution, you are trying to work with Powerpoint via Excel VBA and you didn't activate Powerpoint Object Library first.

To do this, in the VBA editor top menu select Tools, References, then scroll down to click the library called Microsoft Powerpoint xx.x Object Library. Office 2007 is library 12, each Office version has a different library. FYI, I've experienced some odd errors and file corruption when I activate the 2007 library but someone tries to open and run this macro using Excel 2003. The old version of Excel doesn't recognize the newer library, which seems to cause problems.