Error C2440, Missing Include File?

I’m getting the error “C2440: ‘initializing’ : cannot convert from ‘UNavigationComponent *’ to ‘UObject *’” when initializing my NavComponent in my custom controllers’ constructor. I have seen similar situations like this with other components and I have the feeling I am missing an include file. I lust can’t, for the life of me, figure out which Include file I’m missing. Of course it could be something else all together, but my custom controller is completely bare except for the sub object pointer to the nav component. Any help would be appreciated. Thanks!