I have a problem

I got this eror when i click build i tri to do Rb guard and give this error pls hel p!

Error 1 'COServer_Project.SingleMob.Move()' must declare a body because it is not marked abstract or extern D:\server conquer\PowerSource CO\COServerProject1\COServerProject\Entities.cs 483 21 COServerProject

Well boy to tell u the turth uhh powersource isn't complete loft its all worded diffrent i would go with shadowco source or somthing diff then that source