Forum Post: Why does CCS6 not recognize NULL?

In a function where I would like to return NULL instead of a pointer, I have this statement:

return NULL;

This causes an issue, I get the following Semantic error in CCS6

Symbol 'NULL' could not be resolved

See the error below:

I have to eliminate this error before releasing.  The compile gives me clean bill of health, how can I fix this?

Thanks...