'MyClass' is unavailable: cannot find Swift declaration for this class - Simulator

I have my framework and I am supporting different architectures. For supporting simulator I am using x86_64 in valid architectures.

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But when I use my framework in the app, I get the error while running the app on simulator :

'MyClass(In framework)' is unavailable: cannot find Swift declaration for this class

Note : It works fine on device.

from 'MyClass' is unavailable: cannot find Swift declaration for this class - Simulator