Google maps SDK

Question

I am using Google maps with the following:

mapV = [GMSMapView mapWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 
                            self.view.frame.size.height) camera:camera];

but when I debug it is showing the following error at least 15 times:

: CGContextDrawImage: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.

Then it crashes throwing an exception:

[GMSCachedTile setPerTileExpiration:]: unrecognized selector sent to instance 0x1a01f680'

Can anybody please help?