Tapkey Mobile SDK missing build when using Objective C for iOS

I get this error message when trying to use the Tapkey Mobile SDK for iOS in a Objective C AppDelegate:

No visible @interface for 'TKMServiceFactoryBuilder' declares the selector 'build'

This is the code I use to initialize the ServiceFactory:

TKMServiceFactoryBuilder *builder = [[TKMServiceFactoryBuilder alloc] init]; self.tapkeyServiceFactory = [builder build];

Here is the error message as screenshot:

Am I missing some imports? The code above with the config has a valid build method. I can also use the setConfig to use the config above.

Or am I just not using the library correctly in Objetcive C?

The project is React Native. The SDK is working with Android using the React Native Bridge and I want to add it to iOS to.

The SDK is prepared for iOS but unfortunately the AppDelegate is in objetcive c and not swift. There is no documentation on how to use it with that.

Solution