How do I solve this error?

Hello there,

I have opened the sample program for a mecanum drive however I get this error…

What do I need to do to solve it?

Thanks !

Have you selected cortex as the target? (ie. not vexiq).

If your using vexIQ as the cortex target, then instead of numbers it uses letters (ex. 1=A), so you might want to check your cortex target, otherwise if your downloading to a vex cortex, you should be fine