Instance method 'xyz()' nearly matches optional requirement 'xyz()' of protocol 'ABDelegate'

Question

cannot override delegate functions,

didFinishLaunchingWithOptions and other functions related to app delegates are fine but when i tried to use application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool got the warning below and even after running an app it's not invoked.

Also getting the same warning on SafariVC Delegate

Have your tried cleaning the project and deleting derived data? — Malik, Jan 15 '18 at 07:40
It's `ObjC->Swift` name translation bug. Check answers for https://stackoverflow.com/questions/39495773/xcode-8-warning-instance-method-nearly-matches-optional-requirement — user28434'mstep, Jan 15 '18 at 12:45

score 0 · Answer 1 · answered Jan 16 '18 at 04:37

MY BAD !!

Actually the main problem with my code is CLASS NAME, i created a class having name URL and as you know NSURL is now URL. Whenever i override any delegates functions having URL in it's parameters Xcode gives me the warning because it gets my URL class not from SDK. So you can say the classes names are also reserved and shouldn't be used.

Instance method 'xyz()' nearly matches optional requirement 'xyz()' of protocol 'ABDelegate'

1 Answers1