Hi, I have similar problem but it is solved and then suddenly i got this:
sketch_mar09a:17: error: two or more data types in declaration of 'loop'
sketch_mar09a:98: error: two or more data types in declaration of 'loop'
The sketch name had to be modified. Sketch names can only consist
of ASCII characters and numbers (but cannot start with a number).
They should also be less less than 64 characters long.
How do I solve this? I'm still new with arduino.