HttpUtility

Hello,

I would like to use HttpUtility.HtmlDecode() but i have this error:

Error CS0122: 'System.Net.HttpUtility' is inaccessible due to its protection level (CS0122) (ProjetXam.Android)

This is how I use it :

Content = HttpUtility.HtmlDecode(content.Substring(contentStarting, content.Length - contentStarting));