Error “No known class method for selector 'Hello:'” in custom-made framework

Question

I am making a framework for a company and I have completed all the code. I\'m now trying to package it into a framework. As a test I made a method with this name: -(v

Answer 1

please refer to : https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html

to answer your question, change

@interface Hello : NSObject
-(void)Hello:(NSString *)world;
@end 

to

@interface CompanyMobile : NSObject{
}
+(void)Hello:(NSString *)world;
@end

and call the method [CompanyMobile Hello:@"world"];

Answer 2

You defined Hello: as an instance method, but you're sending Hello: to the class. To define a class method, you write + (void)Hello: rather than - (void)Hello:.