We've all done it I'm sure. Re-used code from one project in another and forgotten to change the path references.

In most cases its fairly simple to sort but every now and then I come across really irritating examples, where the project will complain (on entry or on compilation) that such and such is missing. And it doesn't tell you where the damn thing is being referenced so that you can fix it.

Sometimes the code reference tool comes to my rescue, and sometimes it too fails to find any of the offending references.

Where else can we turn at this point?