Visual Studio 2013 C# Web Project builds but IDE reports The type or namespace name xxx could not be found error

Question

When opening an MVC4 C# web project in Visual Studio 2013, the IDE reports the error \"The type or namespace name \'_\' could not be found (are you missing a using

Answer 1

Try to unload the project in VS2013, then right click the node and select edit "projectname.csproj". Check the individual references they might point to somewhere strange.

EDIT: the csproj file is an xml file and the references are located under Project -> ItemGroup -> Reference