Undefined symbols for architecture armv7 for Cocoapods libraries

I stumbled upon a problem on a project that I need to work on. The project use Cocoapods for managing its libraries. I run `pod install` as usual to get started but xcode give me errors. I got `Undefined symbols for architecture armv7` as you can see in the image below: All this symbols are the libraries that I use with my project. Eg. AFNetworking, RNBlurModalView. I tried to remove all the Cocoapods related file from the project and running `pod install` again, but it still doesn't solved the problem. What I have done so far: - Clean the project and build again. - Removing Cocoapods related files and running `pod install` again. - Tried to add the class in Compile Sources in Project Target, but can't. The class is in Pods workspace. - Set Build Active Architecture Only from `YES` to `NO`. I also try the solutions from the same problem, but none of it is working for me. If it helps, I'm using xCode6 and Cocoapods `0.34.4`. The project valid architectures is `armv7 and armv7s`. Update: When running `pod install --verbose` ``` Integrating client project Integrating target `Pods` (`AIYOCore.xcodeproj` project) [!] The use of implicit sources has been deprecated. To continue using all of the sources currently on your machine, add the following to the top of your Podfile: source 'https://github.com/CocoaPods/Specs.git' [!] The `Project [Debug]` target overrides the `OTHER_LDFLAGS` build setting defined in `Pods/Target Support Files/Pods/Pods.debug.xcconfig'. This can lead to problems with the CocoaPods installation - Use the `$(inherited)` flag, or - Remove the build settings from the target. [!] The `Project [Release]` target overrides the `OTHER_LDFLAGS` build setting defined in `Pods/Target Support Files/Pods/Pods.release.xcconfig'. This can lead to problems with the CocoaPods installation - Use the `$(inherited)` flag, or - Remove the build settings from the target. ``` Thanks in advance.