Visual studio 2015 project missing all references

Question

Starting from today, a WPF project that belongs to a solution with 20 projects, set all my references to missing

I've just checked the MS suggestion and the other answers on Stackoverflow but none worked...I've tried to re-get solution from SVN, with no luck, other colleagues haven't got this problem. I've also tried to remove and re-add the references (System.Xml for example) . But no way to make it work...

Any suggestion? Thanks

UPDATE #1

Here's the csproj

 <ItemGroup> <Reference Include="Catel.Core, Version=4.2.0.0, Culture=neutral, processorArchitecture=MSIL">   <HintPath>..\packages\Catel.Core.4.2.0\lib\net40\Catel.Core.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Catel.Extensions.Controls, Version=4.2.0.0, Culture=neutral, processorArchitecture=MSIL">   <HintPath>..\packages\Catel.Extensions.Controls.4.2.0\lib\net40\Catel.Extensions.Controls.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Catel.Extensions.FluentValidation, Version=4.2.0.0, Culture=neutral, processorArchitecture=MSIL">   <HintPath>..\packages\Catel.Extensions.FluentValidation.4.2.0\lib\net40\Catel.Extensions.FluentValidation.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Catel.Fody.Attributes, Version=2.8.0.0, Culture=neutral, PublicKeyToken=1c8163524cbe02e6, processorArchitecture=MSIL">   <HintPath>..\packages\Catel.Fody.2.8.0\lib\portable-net4+sl4+wp7+win8+wpa81+MonoAndroid14+MonoTouch40\Catel.Fody.Attributes.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Catel.MVVM, Version=4.2.0.0, Culture=neutral, processorArchitecture=MSIL">   <HintPath>..\packages\Catel.MVVM.4.2.0\lib\net40\Catel.MVVM.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="MethodTimer, Version=1.15.7.0, Culture=neutral, PublicKeyToken=cb1364609f40a1dc, processorArchitecture=MSIL">   <HintPath>..\packages\MethodTimer.Fody.1.15.7.0\Lib\portable-net4+sl5+wp8+win8+wpa81+MonoAndroid16+MonoTouch40\MethodTimer.dll</HintPath>   <Private>False</Private> </Reference> <Reference Include="Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">   <HintPath>..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Microsoft.Threading.Tasks.Extensions, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">   <HintPath>..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.Extensions.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Microsoft.Threading.Tasks.Extensions.Desktop, Version=1.0.168.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">   <HintPath>..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.Extensions.Desktop.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="PresentationCore" /> <Reference Include="PresentationFramework" /> <Reference Include="ServiceStack">   <HintPath>..\packages\ServiceStack.4.0.46\lib\net40\ServiceStack.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="ServiceStack.Client, Version=4.0.46.0, Culture=neutral, processorArchitecture=MSIL">   <HintPath>..\packages\ServiceStack.Client.4.0.46\lib\net40\ServiceStack.Client.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="ServiceStack.Common">   <HintPath>..\packages\ServiceStack.Common.4.0.46\lib\net40\ServiceStack.Common.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="ServiceStack.Interfaces, Version=4.0.0.0, Culture=neutral, PublicKeyToken=e06fbc6124f57c43, processorArchitecture=MSIL">   <HintPath>..\packages\ServiceStack.Interfaces.4.0.46\lib\portable-wp80+sl5+net40+win8+monotouch+monoandroid+xamarin.ios10\ServiceStack.Interfaces.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="ServiceStack.Text, Version=4.0.46.0, Culture=neutral, processorArchitecture=MSIL">   <HintPath>..\packages\ServiceStack.Text.4.0.46\lib\net40\ServiceStack.Text.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="System" /> <Reference Include="System.ComponentModel.DataAnnotations" /> <Reference Include="System.Configuration" /> <Reference Include="System.Core" /> <Reference Include="System.IO, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">   <HintPath>..\packages\Microsoft.Bcl.1.1.10\lib\net40\System.IO.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="System.Management" /> <Reference Include="System.Net" /> <Reference Include="System.Runtime, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">   <HintPath>..\packages\Microsoft.Bcl.1.1.10\lib\net40\System.Runtime.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="System.Threading.Tasks, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">   <HintPath>..\packages\Microsoft.Bcl.1.1.10\lib\net40\System.Threading.Tasks.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="System.Windows.Interactivity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">   <HintPath>..\packages\Catel.MVVM.4.2.0\lib\net40\System.Windows.Interactivity.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="System.Xaml" /> <Reference Include="System.Xml.Linq" /> <Reference Include="System.Data.DataSetExtensions" /> <Reference Include="Microsoft.CSharp" /> <Reference Include="System.Data" /> <Reference Include="System.Net.Http" /> <Reference Include="System.Xml" /> <Reference Include="Telerik.Windows.Controls, Version=2015.2.728.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7, processorArchitecture=MSIL">   <HintPath>..\packages\Telerik.Windows.Controls.for.Wpf.40.Xaml.2015.2.728\lib\net40\Telerik.Windows.Controls.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Telerik.Windows.Controls.GridView, Version=2015.2.728.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7, processorArchitecture=MSIL">   <HintPath>..\packages\Telerik.Windows.Controls.GridView.for.Wpf.40.Xaml.2015.2.728\lib\net40\Telerik.Windows.Controls.GridView.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Telerik.Windows.Controls.Input, Version=2015.2.728.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7, processorArchitecture=MSIL">   <HintPath>..\packages\Telerik.Windows.Controls.Input.for.Wpf.40.Xaml.2015.2.728\lib\net40\Telerik.Windows.Controls.Input.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Telerik.Windows.Controls.Navigation, Version=2015.2.728.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7, processorArchitecture=MSIL">   <HintPath>..\packages\Telerik.Windows.Controls.Navigation.for.Wpf.40.Xaml.2015.2.728\lib\net40\Telerik.Windows.Controls.Navigation.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="Telerik.Windows.Data, Version=2015.2.728.40, Culture=neutral, PublicKeyToken=5803cfa389c90ce7, processorArchitecture=MSIL">   <HintPath>..\packages\Telerik.Windows.Data.for.Wpf.40.Xaml.2015.2.728\lib\net40\Telerik.Windows.Data.dll</HintPath>   <Private>True</Private> </Reference> <Reference Include="UIAutomationProvider" /> <Reference Include="UIAutomationTypes" /> <Reference Include="WindowsBase" /> 

Yes I use Nuget, the other 19 points to the same assemblies ...nothing has been moved

UPDATE #2

Since I was not able to proceed I've copied the project from a colleague and now it works.... think something went wrong in the filesystem...have compared the solution and they were identical

Answer 1

The resolution to this issue is.

Whenever you import a project to VS 2015 it modifies your .csproj. So, in order to fix it. Right click on .csproj and open it in notepad or any editor and delete the following

<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('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" /> </Target> 

Then build your solution and it should work.