Install Nuget Packages

i'm trying to use the "install NuGet Packages" to run a restore before I run msbuild but it keeps blowing up, with an exception of : Inedo.IO.PathEx.DetectDirectorySeparator(String)

I'd paste some pictures of my definition and results, but apparently the UI doesn't allow it??

Product: BuildMaster
Version: 5.6.11

Additional Info:

Get latest from source control complete.
Using LocalAgent agent on BuildMaster
Unhandled exception: System.NullReferenceException: Object reference not set to an instance of an object.
at Inedo.IO.PathEx.DetectDirectorySeparator(String path)
at Inedo.IO.PathEx.Combine(String path1, String path2)
at Inedo.BuildMasterExtensions.NuGet.Operations.InstallPackagesOperation.<ExecuteAsync>d__12.MoveNext() in C:\ProgramData\InedoAgent\BuildMaster\Temp_E63052\Src\Extension\Operations\InstallPackagesOperation.cs:line 41
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Inedo.BuildMaster.Windows.ServiceApplication.Executions.PlanExecuter.DeploymentPlanExecuter.<Inedo-ExecutionEngine-Executer-IExecutionHostEnvironment-ExecuteActionAsync>d__25.MoveNext()

Can you update to the latest NuGet extension v5.6.0 if you haven't already?

That fixed it, argh! Been messing with this for hours! Thanks!