Below is my code.
public class PItem
{
public String content;
public int count;
public int fee;
public int amount;
public string descript
If your project seems to be set as .NET 4.0 then change it to for example 3.5 and then change to the 4.0 again. I got this error when I included a class library project from my old solution solution to a new one when I wanted to have the project in my new software. Both solutions were .NET 4 but I got "default parameter specifiers are not permitted" error. I just did what I explained.