I have incorporated the following: 

1. Tried importing both the `GoogleMaps/GoogleMaps.h` as well as the `GoogleMapsM4B/GoogleMaps.h` files through an `Obj-C` Bridging Header
2. Manually typed out the iOS API key in my `AppDelegate.swift (didFinishLaunchingWithOptions)` method.
3. Cleaned the project (command+shift+k)
4. Closed/relaunched Xcode
5. Uninstalled/reinstalled Xcode

And pretty much everything else other people have suggested. I have spent two days straight trying to fix this problem. Does anyone know a solution to this problem?

The console complaint is:

> 
> 
> ```
> > "2015-08-17 18:02:19.899 Project[608:10014] ClientParametersRequest
> > failed, 3 attempts remaining (0 vs 6). Error
> > Domain=com.google.HTTPStatus Code=400 "The operation couldn’t be
> > completed. (com.google.HTTPStatus error 400.)" UserInfo=0x790bc050
> > {data=<CFData 0x7925cb40 [0x22da9a8]>{length = 145, capacity = 256,
> > bytes = 0x3c48544d4c3e0a3c484541443e0a3c54 ... 3c2f48544d4c3e0a}}
> > 2015-08-17 18:02:19.899 randoPracty[608:10014] Google Maps SDK for iOS
> > (M4B) version: 1.10.17867.0 2015-08-17 18:02:19.959
> > randoPracty[608:10014] ClientParametersRequest failed, 2 attempts
> > remaining (0 vs 6). Error Domain=com.google.HTTPStatus Code=400 "The
> > operation couldn’t be completed. (com.google.HTTPStatus error 400.)"
> > UserInfo=0x7925cf40 {data=<CFData 0x79187b20 [0x22da9a8]>{length =
> > 145, capacity = 256, bytes = 0x3c48544d4c3e0a3c484541443e0a3c54 ...
> > 3c2f48544d4c3e0a}} 2015-08-17 18:02:24.406 randoPracty[608:10014]
> > ClientParametersRequest failed, 1 attempts remaining (0 vs 6). Error
> > Domain=com.google.HTTPStatus Code=400 "The operation couldn’t be
> > completed. (com.google.HTTPStatus error 400.)" UserInfo=0x790f4c60
> > {data=<CFData 0x786e5610 [0x22da9a8]>{length = 145, capacity = 256,
> > bytes = 0x3c48544d4c3e0a3c484541443e0a3c54 ... 3c2f48544d4c3e0a}}
> > 2015-08-17 18:02:32.797 randoPracty[608:10014] ClientParametersRequest
> > failed, 0 attempts remaining (0 vs 6). Error
> > Domain=com.google.HTTPStatus Code=400 "The operation couldn’t be
> > completed. (com.google.HTTPStatus error 400.)" UserInfo=0x7925b390
> > {data=<CFData 0x790f3760 [0x22da9a8]>{length = 145, capacity = 256,
> > bytes = 0x3c48544d4c3e0a3c484541443e0a3c54 ... 3c2f48544d4c3e0a}}
> > 2015-08-17 18:02:32.797 randoPracty[608:10014] Google Maps SDK for iOS
> > (M4B) cannot connect or validate APIKey: Error
> > Domain=com.google.HTTPStatus Code=400 "The operation couldn’t be
> > completed. (com.google.HTTPStatus error 400.)" UserInfo=0x7925b390
> > {data=<CFData 0x790f3760 [0x22da9a8]>{length = 145, capacity = 256,
> > bytes = 0x3c48544d4c3e0a3c484541443e0a3c54 ... 3c2f48544d4c3e0a}}
> > 2015-08-17 18:02:32.798 randoPracty[608:10014] Your key may be invalid
> > for your bundle ID: com.User.ProjectName"
> 
> ```
> 
>