Just in case, someone needs another simple approach, I resolved this issue by doing the following:
• Download nuget.exe from
https://nuget.codeplex.com/releases
• Place it somewhere you can reference it, for example, %PROJDIR%
• Create a NuGet step such as the one below:
<step action='NuGet'>
<Command>restore</Command>
<Exe>%PROJDIR%\nuget.exe</Exe>
<PackageId>c:\sourcecode\solutionroot\VS2013Soluti onFileName.sln</PackageId>
<buildfailsteps type='11'>0</buildfailsteps>
<indent type='3'>1</indent>
<name>NuGet</name>
</step>