I tried now several Times to Compile the 1.9.8 Code for my V2 Hardware. Allways shows up with the same error Message:
Arduimo:248: error APMCompass_Class does not name a type
and some more Lines. This is only happen when I try the V2 Hardware for the V3 it works fine. I allready instaled everything new but nothing changes.
any idears whats happen?