VS2012 Error: The target "VSIXContainerProjectOutputGroup" does not exist in the project.

I'm using VS2012, and VS2012 SDK.

I created a new Visual Studio Package project from the template. The options i've filled in for the template were minimal (none of the checkboxes was checked). 

I've added another project in the solution as a 'Dependency' for the outputted .vsix. That project's compiled dll is to be embedded inside the .vsix. I've added the Dependency using the 'source.extension.vsixmanifest' designer, and the relevant part in the auto-generated file looks like:

<Dependencies><Dependency Id="Microsoft.Framework.NDP" DisplayName="Microsoft .NET Framework" d:Source="Manual" Version="4.5" /><Dependency Id="Microsoft.VisualStudio.MPF.11.0" DisplayName="Visual Studio MPF 11.0" d:Source="Installed" Version="11.0" /><Dependency d:Source="Project" d:ProjectName="ConsoleApplication1" DisplayName="|ConsoleApplication1;VSIXContainerProjectOutputGroup|" Id="|ConsoleApplication1;VSIXContainerProjectOutputGroup|" d:InstallSource="Embed" Location="|ConsoleApplication1;VSIXContainerProjectOutputGroup|" /></Dependencies>

Also, it changed the project (the .csproj file) to have the following ItemGroup:

<ItemGroup><ProjectReference Include="..\ConsoleApplication1\ConsoleApplication1.csproj"><Project>{96B3ED83-97E0-4A61-BB33-3030E1C500FD}</Project><Name>ConsoleApplication1</Name><ReferenceOutputAssembly>false</ReferenceOutputAssembly><IncludeOutputGroupsInVSIX>VSIXContainerProjectOutputGroup%3b</IncludeOutputGroupsInVSIX></ProjectReference></ItemGroup>

All this is nice and well, however, when I attempt to build the package project, Visual Studio gives me the following error message:

         The target "VSIXContainerProjectOutputGroup" does not exist in the project. 

I've 'repaired' VS2012 SDK in hoping that this will solve the problem, but alas, following build-attempts resulted with the same error.

I've looked at the end of the project's xml (.csproj file) and the following targets were inside:

<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<Import Project="$(VSToolsPath)\VSSDK\Microsoft.VsSDK.targets" Condition="'$(VSToolsPath)' != ''" />  

Does anyone know how to solve this issue?

Thanks in advance.

Addition: More over, I've looked inside "C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v11.0\VSSDK\Microsoft.VsSDK.targets" and i've found the following entry:

  <!--
    ============================================================
             VSIXContainerProjectOutputGroup
             
      Used for determining the VSIX Container that this project
      builds from other projects that reference it.
    ============================================================
    -->
  <Target Name="VSIXContainerProjectOutputGroup"
          Outputs="@(VSIXContainerOutputGroupOutput)"
          DependsOnTargets="$(VSIXContainerProjectOutputGroupDependsOn)">

    <ItemGroup Condition="'$(CreateVsixContainer)'=='true'">
      <_VSIXContainerOutputGroupOutput Include="$(TargetVsixContainer)" />
    </ItemGroup>

    <ItemGroup Condition="'$(CreateVsixContainer)'=='true'">
      <VSIXContainerOutputGroupOutput Include="@(_VSIXContainerOutputGroupOutput->'%(FullPath)')" />
    </ItemGroup>
  </Target>

  <PropertyGroup>
    <VSIXNameProjectOutputGroupDependsOn>$(VSIXIdentifierProjectOutputGroupDependsOn);FindSourceVsixManifest</VSIXNameProjectOutputGroupDependsOn>
  </PropertyGroup>

This baffles me even more - That .targets file is referenced (imported) by my package project, and that target does exist. What could be problem?!