unable to locate nuget.exe when building webservice on appharbor

I'm trying to deploy my webservice at appharbor using codeplex. After trying it the first time and doing some research I found out that I had to use NuGet so the references are being found..

Now I only have 1 error left which I don't know how to solve

   "D:\temp\g3wyilvx.uln\input\WebService\Webservice.sln" (default target) (1) ->
   "D:\temp\g3wyilvx.uln\input\WebService\Webservice\Webservice.csproj" (default target) (2) ->
   (CheckPrerequisites target) -> 
     D:\temp\g3wyilvx.uln\input\WebService\.nuget\nuget.targets(72,9): error : Unable to locate 'D:\temp\g3wyilvx.uln\input\WebService\.nuget\nuget.exe' [D:\temp\g3wyilvx.uln\input\WebService\Webservice\Webservice.csproj]
0 Warning(s)
1 Error(s)
Time Elapsed 00:00:00.17

How am I suppose to solve this error ? Any useful links that might help me in the future are also appreciated.

I solved this by changing this line in my NuGet.targets file and setting it to true:

<DownloadNuGetExe Condition=" '$(DownloadNuGetExe)' == '' ">true</DownloadNuGetExe>

But you must restart Visual Studio or reload the solution (see this) for this to take effect.

I resolved the problem by right clicking Solution and click

Enable NuGet Package Restore

Executables might be ignored in your .gitignore via

*.exe 

Add this line to .gitignore:

!.nuget/NuGet.exe