Just returned home and trying to start up my Mendel 90. Began by recalibrating and leveling the table. The nozzle height was some distance from the bed glass and so I remembered to change the Arduino sketch to a higher "Z" value.
Having changed the sketch, it will not compile and reports as follows :- main.cpp:ll:undefined reference to "setup" & main.cpp:ll:undefined reference to "loop".
Would anyone be kind enough to interpret that for me please.
