I cannot import any classes. There are no classes in header file. Xcode: 12.2 <img width="300" src="https://user-images.githubusercontent.com/2742732/103728194-a1e13a80-5020-11eb-818c-fd06cc90936f.png"> <img width="300" src="https://user-images.githubusercontent.com/2742732/103728284-eb318a00-5020-11eb-9128-3e855c2572b9.png">
I cannot import any classes. There are no classes in header file.
Xcode: 12.2