'System.DateTime' is not a valid Windows Runtime parameter type

Question

I\'m using a C# class and it works perfectly fine in my Windows Store App (C#). But when I try to use it in a Windows Runtime Compenent I get the following error:

Answer 1

I was also facing the same issue in my Windows Runtime Component as below.

Severity Code Description Project File Line Suppression State
Error Method '.put_TxPower(System.SByte)' has parameter 'value' of type 'System.SByte'.  
System.SByte' is not a valid Windows Runtime parameter type.

As Lukasz Madon mentioned in the comment, changing the access modifier from the public to internal worked for me.

Before:

public sbyte TxPower { get; set; }

After:

internal sbyte TxPower { get; set; }