After I installed SocialAccounts into the example "SocialAccountsSample", XCode said "GTMOAuthViewControllerTouch.h" file not found.

And here is what I get after installed the pod.
"[!] The target SocialAccountsSample [Debug] overrides the HEADER_SEARCH_PATHS build setting defined in Pods/Pods.xcconfig'.
- Use the$(inherited)` flag, or
- Remove the build settings from the target.
[!] The target SocialAccountsSample [Debug - Release] overrides the HEADER_SEARCH_PATHS build setting defined in Pods/Pods.xcconfig'.
- Use the$(inherited)` flag, or
- Remove the build settings from the target."
How can I solve this? Thanks