XCode Warning: Using 'stringWithString': with a literal is redundant

Question

I got the following warning

Using 'stringWithString': with a literal is redundant

while using the method usingWithString

[NSString stringWithString:@"Content-Type: content/unknown\r\n\r\n"]

Answer 1

I solved the issue by replacing [NSString stringWithString:@"Content-Type: content/unknown\r\n\r\n"] to @"Content-Type: content/unknown\r\n\r\n"