visual studio 2010 - This project references NuGet package(s) that are missing on this computer

Question

I have an ASP.NET MVC5 application that worked yesterday and now I am getting this error when I try to build:

This project references NuGet package(s) that are missing on this computer.

I have the two options checked that allow nuget to automatically download and install missing packages checked / turned ON. I have also tried deleting all of the files in the packages folder and then have nuget re-download them. Also when I open nuget and look for updates it says there are none that need to be installed. I can't figure what else to do to move beyond this amazingly annoying issue.

I have also enabled nuget restore by right clicking the project and selecting that option. It then added a nuget folder and three items in that folder and does nothing to resolve the problem. I've tried re-building and still get the same error.

Answer 1

In my case, I had to remove the following from the .csproj file:

<Import Project="$(SolutionDir).nugetNuGet.targets" Condition="Exists('$(SolutionDir).nugetNuGet.targets')" />
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
  <PropertyGroup>
    <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
  </PropertyGroup>
  <Error Condition="!Exists('$(SolutionDir).nugetNuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir).nugetNuGet.targets'))" />
</Target>

In fact, in this snippet you can see where the error message is coming from.

I was converting from MSBuild-Integrated Package Restore to Automatic Package Restore (http://docs.nuget.org/docs/workflows/migrating-to-automatic-package-restore)