Spelling matters! In this particular case, you have (in your code):
Note, though, that it should be:
The misspelling of 'auton' was what caused the error; ROBOTC assumed that you defined a function called 'pre_aton' (which is valid) but the template calls for pre_auton, it technically doesn't exist, hence the error.
Correcting the spelling should fix the issue for you.
Check out our Blog
! And our Facebook page
Need help? Take a look at our updated help documentation
and the ROBOTC Forums.