Using Swift class in Objective c. Undeclared identifier error ocurs

Question or problem in the Swift programming language:

I’d created a test project to try Swift. But I’ve stuck on importing Swift class into Objective-C class. Project name is “TestSwift1”. And I have set Defines Module in Packaging to YES. XCode-Beta3

I have next code:

//swift SwtClass.swift  
import Foundation

class SwtClass
{
     var title = ""
}
//Objective-C ObjClass.h

@interface ObjClass : NSObject

@property (nonatomic, strong) NSString* title;

@end

//Objective-c ObjClass.m
#import 
#import "ObjClass.h"
#import 

@implementation ObjClass

- (void)doSomething
{
      SwtClass* b; // Error: "Use of undeclared identifier 'SwtClass'"
                   // Error: "Use of undeclared identifier 'b'"

      NSLog(@"something is done");
}

@end

How to solve the problem:

While writing this question I’ve found solution. And as always it was very simple but took a while maybe this will save somebody a couple of minutes.

To use Swift class(that is not a subclass of NSObject) in Objective-C don’t forget to mark it with @objc as it said here “Using Swift from Objective-C”. My Swift class had to look like this:

//swift SwtClass.swift  
import Foundation

@objc class SwtClass
{
     var title = ""
}

Hope this helps!