FIRApp Linker Error ["_OBJC_CLASS_$_FIRApp"]

Question

I have scoured SO and Google but can't find an answer that works. I have used the new Firebase Cocoapod on multiple projects but now, when adding it to a different project I am getting the following error.

I am using Xcode 7.3.1 with cocoapods 1.0.1.

Here is my podfile:

Any help is greatly appreciated!

Answer 1

Go to Build Settings > Other Linker Flags > on a new line $(inherited).

Do a Cmd+Ctrl+K for a clean, and then build.