SSKeychain not found for architecture i386

I have downloaded and included the SSKeychain files into my iOS project. I am coding with the iOS 6.1 SDK in xcode 4.6. I have used a button to take the username and password UITextFields and store them as a keychain account like so:

- (IBAction)button_register {
    [SSKeychain setPassword:username_reg.text forService:@"myapp" account:password_reg.text];
}

button_register is just the action linked to the register button. And username_reg is the UITextField on the registrations screen, and likewise for the password_reg.

However, when I go to execute and run my app to see if it will build, I encounter an error like this:

enter image description here

I have absolutely no idea what this means, anyone with more experience that could enlighten me would be appreciated.

Solution

Ah, I hadn't added the files into the compile sources. Fixed.

linker command failed with exit code 1 - iOS