I am having some trouble getting the code to compile.
I downloaded the ACM 2.0 Beta, then dropped the libraries off in Arduino-->libraries folder. I then opened, and added: #define MAG_ORIENTATION AP_COMPASS_COMPONENTS_DOWN_PINS_FORWARD to the APM_Config.h file in the Arduino IDE. Then I tried to compile the code, and it would not compile.
I have the error message in the picture attached. I think that I have not listed also the neccary defines, if this is the case where can I go to see all the options that I should have to put in APM_Config.h file?