instantiating a generic class data type known at runtime [duplicate]

This question already has an answer here:

• Pass An Instantiated System.Type as a Type Parameter for a Generic Class 3 answers

I have a generic class in C# which has 2 data types public class ResolvedChainSubscriber < K, V>, now I have to create an instance of this class, but the data type of one of the arguments will only be known at runtime. I have it stored as "Type Prototype"

public static Object SubsciberTopic(Type ProtoType)
{
    Type[] type={Type.GetType("System.String"),ProtoType};
    Type resolve = typeof(ResolvedChainSubscriber <,>).MakeGenericType(type); 
    ResolvedChainSubscriber<string, Activator.CreateInstance(resolve)> obj1 = new ResolvedChainSubscriber<string, Activator.CreateInstance(resolve)>();
}

However, this doesn't seem to be working.