I went to make a one line change in a PIC24 project I last compiled in October 2017. Hit compile, and it can't find any of the include files. They ARE there, and the project include paths still look good. The PIC32 project I've been working on most recently still compiles fine. Ideas???? Thanks! Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .