Could not create an instance of type ITask. Type is an interface or abstract class and cannot be instantiated

Question

I have the class structure:

public class Task1 : ITask

and

public class Task2 : ITask

and some method:

public static T FromByteArray<T>(byte[] data)
        {
            if (data == null)
                return default(T);            
            using (var stream = new MemoryStream(data))
            using (var reader = new StreamReader(stream, Encoding.UTF8))
                return (T)JsonSerializer.Create().Deserialize(reader, typeof(T));                
        }

where I pass the interface. And get the error: "Could not create an instance of type ITask. Type is an interface or abstract class and cannot be instantiated." I read similar questions, but how can I use the solution with the JsonSerializerSettings in my case? In my case method Deserialize do not have an option for JsonSerializerSettings