Exception: No matching step definition found for the step.

[tedvanderveen]

When I clone this repository and run the sample test, it works great!

But when I copied the source of the sample project to an existing solution and adjusted bits like assembly and namespaces used to fit in the overall existing solution, I get the test exception result below. But the suggested part of code in the bottom of the details below, is actually available. Any suggestions on how to fix this?

[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9590224]       Stack Trace:
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9590600]            at TechTalk.SpecFlow.UnitTestProvider.XUnitRuntimeProvider.TestPending(String message)
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9590965]            at TechTalk.SpecFlow.ErrorHandling.ErrorProvider.ThrowPendingError(TestStatus testStatus, String message)
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9591260]            at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.OnAfterLastStep()
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9591479]            at TechTalk.SpecFlow.TestRunner.CollectScenarioErrors()
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9591738]            at SpecFlow.xUnitAdapter.SpecFlowPlugin.Runners.ScenarioTestCaseRunner.ScenarioCleanup()
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9592026]            at SpecFlow.xUnitAdapter.SpecFlowPlugin.Runners.ScenarioTestCaseRunner.RunScenario(SpecFlowDocument gherkinDocument, Scenario scenario)
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9592299]            at SpecFlow.xUnitAdapter.SpecFlowPlugin.Runners.ScenarioTestCaseRunner.<>c__DisplayClass9_0.<RunTestAsync>b__2()
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9592817]       Output:
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9593222]         Given I have entered the following numbers
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9593459]           --- table step argument ---
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9593670]           | number |
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9593886]           | 29     |
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9594068]           | 13     |
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9594228]         -> No matching step definition found for the step. Use the following code to create one:
[1/18/2018 12:18:37 PM Informational] [xUnit.net 00:00:01.9594400]                 [Given(@"I have entered the following numbers")]
public void GivenIHaveEnteredTheFollowingNumbers(Table table)
{
    ScenarioContext.Current.Pending();
}

[gasparnagy]

Do you get the error when you use it from NuGet? https://www.nuget.org/packages/SpecFlow.xUnitAdapter/

[mtrcn]

@gasparnagy I have the same problem, If I use Bindings from a Nuget packages, it doesn't scan external dlls and then it gives same error.

[HoraceBury]

I have the same problem and it appears to be a long running, persistent issue for many. External assemblies containing step definitions are simply not found. This means that context highlighting in Visual Studio does not work.

[tedvanderveen]

Not sure if the repo is still in active development or maybe being merged into the main SpecFlow repos?

[mtrcn]

I found the solution, I had the same problem with .Net Core project, so I will explain it for .Net Core but you can modify it based on your need, of course.

1: You need to upgrade SpecFlow assemblies to newest version, I forked SpecFlow repository and made few changes to make it build for .Net Standard 2.0. Here is my branch; https://github.com/mtrcn/SpecFlow/tree/netstandard

2: Second, you need to create JSON config file in your SpecFlow project root, like following; specflow.json

{
	"specFlow": {
		"stepAssemblies": [ { "assembly": "Mete.BDD.Bindings" } ]
	}
}

3: Modify following lines;

https://github.com/gasparnagy/SpecFlow.xUnitAdapter/blob/f86e2fe82f7f4bfb5981d700301aea4463e06107/src/SpecFlow.xUnitAdapter.SpecFlowPlugin/Runners/ScenarioTestCaseRunner.cs#L32-L33

with these;

            var containerBuilder = new ContainerBuilder();
            var objectContainer = containerBuilder.CreateGlobalContainer();
            var configurationLoader = objectContainer.Resolve<IConfigurationLoader>();

            var assembly = AssemblyLoadContext.Default.LoadFromAssemblyPath(Path.GetFullPath(TestCase.FeatureFile.SpecFlowProject.AssemblyPath));

            var testRunnerManager = new TestRunnerManager(
                objectContainer,
                containerBuilder,
                configurationLoader.Load(ConfigurationLoader.GetDefault()),
                objectContainer.Resolve<IRuntimeBindingRegistryBuilder>()
                );
            testRunnerManager.Initialize(assembly);

            testRunner = testRunnerManager.GetTestRunner(Thread.CurrentThread.ManagedThreadId);

This will help you load external bindings that are specified in json config.

Hope it helps!

[HoraceBury]

Any chance you can submit a PR (assuming you can make this work for good old VS2015)?