"it was throwing some errors"

If you want help with error messages, please be sure to post the full text of the message - how can we help you solve the problem if you don't give all the info!?

Anyway, I'd guess that the error you're getting is probably:

error C272: 'asm/endasm' requires src-control to be active

and that message contains the answer to your problem!
For further details, look up the description of that message in the Manual! - or select the message in the uVision 'Build' window and press F1: this will bring up the help file with the explanation of the message.