Can't obtain parameterless constructor of a struct [duplicate]

This question already has an answer here:

• C# using reflection to create a struct 3 answers

I'm trying to create an instance of a struct which's datatype is not known at compile time by obtaining and invoking it's parameterless constructor. The following (otherwise rather useless) code snippet shows what I do:

var i = new System.Int32();
var type = i.GetType();
var constructor = type.GetConstructor(System.Type.EmptyTypes);
var value = constructor.Invoke(null);

This doesn't work because type.GetConstructor(System.Type.EmptyTypes) returns null. When I step through this I can see that type definitely is System.Int32 and as is evident from the first line there is a parameterless constructor. So why am I unable to obtain it?

I tried the same with an userdefined struct to rule out the posibility of restrictions in built in types but that shows the same behaviour.