Manage NuGet Packages For Solution - where is it?

nuget, nuget-package, visual-studio-2012

Solution

I don't know if you can without opening a solution. Once you do go to the `Solution Explorer`, right click on solution and there is the option as `Manage NuGet Packages for Solution`. Opening the solution also makes appear extra options in the `Tools` -> `Library Package Manager`: `Manage NuGet Packages for Solution` and `Package Visualizer`.

Edit

As @atconway said in the comment, you can't do it while debugging.

Problem

I have just installed `VS2012` and have noticed that in the `Tools >> Library Package Manager` option that `Manage NuGet Packages For Solution` is missing. `Package Manager Console` and `Package Manager Settings` are available but the option I mentioned is not there. I attempted to download Nuget and then restart `VS2012` but nothing has changed. Also, when I installed `Vistual Studio` I included all the libraries available, so I am not sure how I have missed it? Could anyone tell me how to get the `Manage NuGet Packages` option onto `VS2012`?

Original source