xcode - Xcode 'NSinteger' (aka'int')? これはどうですか？

Question

NSString *nssHighscore = [NSString stringWithFormat:@"Bounce the ball upwards by tilting or touching where you want it to go. Bounce on the green platforms in order to move up. If you miss a platform and fall, it's game over.%lu",highscore];

Xcodes の質問: 'NSinteger' (aka'int')

この「NSinteger」（別名「int」）をコードに配置する必要がありましたか。