The "GenerateFeatureCodeBehindTask" failed unexpectedly (SpecFlow v4 beta)

[cwcot]

Has anybody experienced this error - I have added the NuGet packages for xRetry. I am running a newer version of SpecFlow. Have tried to downgrade but this introduces other issues in my project. If this is due to SpecFlow version is support for SpecFlow 4 coming?

    <PackageReference Include="specflow" Version="4.0.31-beta" />
    <PackageReference Include="SpecFlow.Tools.MsBuild.Generation" Version="4.0.31-beta" />
    <PackageReference Include="specflow.xunit" Version="4.0.31-beta" />
    <PackageReference Include="xRetry" Version="1.9.0" />
    <PackageReference Include="xRetry.SpecFlow" Version="1.9.0" />

[JoshKeegan]

Hi,
This will be due to the beta SpecFlow v4 you're using which isn't supported by xRetry.

Hopefully you're already aware, but SpecFlow development has stopped and the community are waiting to find out the future of the project. I'm sure it will continue in some form, either officially or as a fork, but until the future is clear I don't know if v4 will be released. You can follow the discussion on future development of SpecFlow here

[cwcot]

Thanks Josh, I was unaware. Appreciate the update :)

[gauravkhuraana]

I am also getting this problem with ReqnRoll

The "GenerateFeatureFileCodeBehindTask" task failed unexpectedly.
System.Exception->Microsoft.Build.Framework.BuildException.GenericBuildTransferredException: Unit test Provider already set.

    <GenerateFeatureFileCodeBehindTask
      ProjectPath="$(MSBuildProjectFullPath)"
      OutputPath="$(ReqnrollCodeBehindOutputPath)"
      FeatureFiles="@(ReqnrollFeatureFiles)"
      RootNamespace="$(RootNamespace)"
      GeneratorPlugins="@(ReqnrollGeneratorPlugins)" 
      
      MSBuildVersion="$(MSBuildVersion)"
      AssemblyName="$(AssemblyName)"
      TargetFrameworks="$(Reqnroll_TargetFrameworks)"
      TargetFramework="$(Reqnroll_TargetFramework)"
      ProjectGuid="$(ProjectGuid)"
      >

      <Output TaskParameter="GeneratedFiles" ItemName="ReqnrollGeneratedFiles" />
    </GenerateFeatureFileCodeBehindTask>

[JoshKeegan]

@gauravkhuraana the error "The "GenerateFeatureFileCodeBehindTask" task failed unexpectedly." is quite generic & yours looks like a separate issue.

"Unit test Provider already set." is probably the bit to focus on. It's likely that there are multiple nuget packages in that project that are trying to use different test frameworks/providers. e.g. xRetry requires xUnit, so if NUnit was also in the project I'd expect to see that error.

[gauravkhuraana]

@JoshKeegan yes my framework has both NUnit and Reqnroll(recently migrated from specflow)

Now i was searching for a solution so i can put retry on Reqnroll cases,, can this plugin help

any workaround to proceed ?

[JoshKeegan]

Sorry, xRetry only works with xUnit.

Two different projects in the same solution can use different test providers if I remember correctly. So if your unit tests and Reqnroll tests were in different projects, you could use xUnit for Reqnroll, and still use NUnit for your unit tests.

There was also a fork of xRetry that somebody made for NUnit, but I don't think it supports Reqnroll. You could also see if that's something that is being worked on, but I don't know if the package is being maintained.

[gasparnagy]

@gauravkhuraana There is a similar package for NUnit: https://github.com/chrisbillson/NUnitRetry.ReqnrollPlugin