Cannot find protocol declaration for 'CALayerDelegate'

I tried to upgrate the application for iOS 11 in xcode9 however it came out with this error code:

>In file included from /Users/<Username>/Documents/<Project File>/<Project>/Fuel Saving Pro/iTrace-Prefix.pch:12:

>In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:12:
>In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.4.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIAccessibility.h:14:

I found sb said that referencing the Quartz file will help yet I have already referenced it and there is no changes. Thanks!