Nuget’s package restore is automated by the visual studio extension but what about when msbuild.exe runs against the .sln? When you execute the build without the packages you will end up with errors:
warning MSB3245: Could not resolve this reference. Could not locate the assembly
Fortunately we can create a file called ‘after.<SolutionName>.sln.targets’ replacing <SolutionName> with your soltion and putting it in in the folder with the solution and Nuget.exe.
<?xml version=”1.0″ encoding=”utf-8″?>
<Project ToolsVersion=”14.0″ xmlns=”http://schemas.microsoft.com/developer/msbuild/2003″>
<Target Name=”RestoreNuget” BeforeTargets=”Build”>
<Exec Command=”"Nuget.exe" restore "$(SolutionPath)"” WorkingDirectory=”$(MSBuildProjectDirectory)”/>
Now when you run msbuild.exe ExampleApplication.sln
“Nuget.exe” restore “C:\Dev\Repos\Blog\2015-11 – Solution Package Restore\ExampleApplication.sln”
Installing ‘Microsoft.Web.Xdt 2.1.1′.
Successfully installed ‘Microsoft.Web.Xdt 2.1.1′.
Installing ‘NuGet.Core 2.9.0′.
Successfully installed ‘NuGet.Core 2.9.0′.
You can also do things like Upgrade with the -safe flag for continuous integration situations. You can see the example of this on GitHub: