'SubClass.Value1' hides inherited member 'GenericsType3<string, int>.Value1'. Use the new keyword if hiding was intended.

'SubClass.Value2' hides inherited member 'GenericsType3<string, int>.Value2'. Use the new keyword if hiding was intended.

'SubClass<T>.Value1' hides inherited member 'GenericsType3<GenericsType2<int>, T>.Value1'. Use the new keyword if hiding was intended.

'SubClass<T>.Value2' hides inherited member 'GenericsType3<GenericsType2<int>, T>.Value2'. Use the new keyword if hiding was intended.

Nullability of reference types in type of 'event PropertyChangedEventHandler ClassC.PropertyChanged' doesn't match implicitly implemented member 'event PropertyChangedEventHandler? INotifyPropertyChanged.PropertyChanged'.

Non-nullable property 'A' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'B' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Prop1' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'X' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.