Object reference not set to an instance of an object.

[harvinders]

I setup my project just like in the example but keep on getting this exception.

I am using VS 2013, Win 8.1 64bit

System.NullReferenceException was unhandled by user code
  HResult=-2147467261
  Message=Object reference not set to an instance of an object.
  Source=TechTalk.SpecFlow
  StackTrace:
    Server stack trace: 
       at SpecFlow.Reporting.Reporters.ExecuteStep(Action action, MethodBase methodBase, Object[] args)
       at SpecFlow.Reporting.ReportingMessageSink.SyncProcessMessage(IMessage msg)
       at System.Runtime.Remoting.Lifetime.LeaseSink.SyncProcessMessage(IMessage msg)
       at System.Runtime.Remoting.Messaging.ServerContextTerminatorSink.SyncProcessMessage(IMessage reqMsg)
       at System.Runtime.Remoting.Channels.CrossContextChannel.SyncProcessMessageCallback(Object[] args)
       at System.Threading.Thread.CompleteCrossContextCallback(InternalCrossContextDelegate ftnToCall, Object[] args)
       at System.Threading.Thread.InternalCrossContextCallback(Context ctx, IntPtr ctxID, Int32 appDomainID, InternalCrossContextDelegate ftnToCall, Object[] args)
       at System.Runtime.Remoting.Channels.CrossContextChannel.SyncProcessMessage(IMessage reqMsg)
    Exception rethrown at [0]: 
       at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
       at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
       at Taf.Workflow.TestSpec.Steps.TestSpecificationSteps.GivenIHaveATestSpecificationTERev(String testspecificationId, String revision, String testing)
       at lambda_method(Closure , IContextManager , String , String , String )
       at TechTalk.SpecFlow.Bindings.BindingInvoker.InvokeBinding(IBinding binding, IContextManager contextManager, Object[] arguments, ITestTracer testTracer, TimeSpan& duration)
       at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.ExecuteStepMatch(BindingMatch match, Object[] arguments)
       at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.ExecuteStep(StepInstance stepInstance)
       at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.OnAfterLastStep()
       at TechTalk.SpecFlow.TestRunner.CollectScenarioErrors()
       at Taf.Example.Workflow.WorkflowFeature.ScenarioCleanup() in c:\Project\meccano\branch\tools\specbyexample\tests\Taf.Example.Workflow\Workflow.Simple.feature.cs:line 0
       at Taf.Example.Workflow.WorkflowFeature.SimpleTestSpecificationModification2() in c:\Project\meccano\branch\tools\specbyexample\tests\Taf.Example.Workflow\Workflow.Simple.feature:line 6
  InnerException: 

[italiangirl6]

In order to get SpecResults to work across the board, what I did was create a hook class that enherits > ReportingStepDefinitions

Create a static method with an attribute : BeforeTestRun
Inside the method you would choose which report structure you want (I use JSON):
Reporters.Add(new JsonReporter());

You will need to import >
using SpecResults;
using SpecResults.Json;

Then, create another static method within the hook class with either attributes:
AfterScenario/AfterFeature

For AfterScenario:
[AfterScenario]
public static void AfterScenarioRun() {
Reporters.FinishedScenario += (sender, args) => {
//Console.WriteLine(args.Reporter.WriteToString());
var serializedReport = JsonConvert.SerializeObject(args.Reporter);
//Console.Write(String.Format("{0}", JsonConvert.DeserializeObject(serializedReport)));
//Console.Write("\nEnd.");
};
}

For AfterFeature:
[AfterFeature]
public static void AfterFeatureRun()
{
Reporters.FinishedFeature += (sender, args) => {
//Console.WriteLine(args.Reporter.WriteToString());
var serializedReport = JsonConvert.SerializeObject(args.Reporter);
Console.Write(String.Format("{0}", JsonConvert.DeserializeObject(serializedReport)));
Console.Write("\nEnd.");
};
}

Notice the difference of Reporter.FinishedFeature & Reporter.FinishedScenario

Hope this helps.