Visual Studio hangs during "Unloading project" step at shutdown when Resharper is enabled

I persistently run into an issue where Visual Studio cannot be closed normally when Resharper is enabled. The dialog that normally diplays briefly with “Unloading project X of Y” hangs at “0 of Y” forever. The only way to proceed is to force close Visual Studio from Windows Task Manager. When I disable the JetBrains Resharper extension from the Extensions menu, the problem goes away. These symptoms affect any Visual Studio instance I open, regardless of what solution file I have loaded. It even affects entirely basic solutions like a brand new Hello World C# console project.