Recently, I encountered a HTML Agility Pack error. I like to write some code using Visual Studio and C#. I downloaded the HTML Agility Pack recently and I must say, I’m well impressed. I was using C# and Visual Studio 2019 Community edtion and downloading some html and kept getting the above error. You know what fixed it… System.Threading.Thread.Sleep(1000); I put this just after the Load and the Get. I