HTML table tag with col, colgroup, tbody, and thead throws compile error in Visual Studio 2010 and Visual Studio 2012

I have a .NET 3.5 web site with a table tag that contains col, colgroup, tbody and thead tags. This is a server side tag with the runat=”server” attribute. This table was working fine in Visual Studio 2010, but after I installed Visual Studio 2012 and .NET 4.5, this tag now fails to compile in Visual Studio 2010 and in Visual Studio 2012. (I tried both.) Here are the compiler errors that are being thrown:

The name ‘ZipFile’ does not exist in the current context when including System.IO.Compression

I”m currently running .net version 4.5 and am trying to use it’s “new” zip functions. I’m including System.IO.Compression and am trying to run the following code: using System.IO.Compression; string startPath = @"c:examplestart"; string zipPath = @"c:exampleresult.zip"; string extractPath = @"c:exampleextract"; ZipFile.CreateFromDirectory(startPath, zipPath); ZipFile.ExtractToDirectory(zipPath, extractPath); The issue I’m getting is that The name ‘ZipFile does not … Read more