运行功能时遇到问题，Visual Studio中的规格流，构建错误

问题描述

我已经创建了一个基本功能文件，并试图执行我的第一个程序。我已经通过NuGet安装了所有必需的软件包。

收到错误：

Error       The "GenerateFeatureFileCodeBehindTask" task Failed unexpectedly.
System.Exception: Error when reading project file. ---> System.Configuration.ConfigurationErrorsException: Unrecognized element 'unitTestProvider'.
   at System.Configuration.ConfigurationElement.DeserializeElement(XmlReader reader,Boolean serializeCollectionKey)
   at System.Configuration.ConfigurationSection.DeserializeSection(XmlReader reader)
   at TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler.CreateFromXml(String xmlContent)
   at TechTalk.SpecFlow.Configuration.ConfigurationLoader.Load(SpecFlowConfiguration specFlowConfiguration,ISpecFlowConfigurationHolder specFlowConfigurationHolder)
   at TechTalk.SpecFlow.Generator.Configuration.GeneratorConfigurationProvider.LoadConfiguration(SpecFlowConfiguration specFlowConfiguration,SpecFlowConfigurationHolder specFlowConfigurationHolder)
   at TechTalk.SpecFlow.Generator.Configuration.GeneratorConfigurationProviderExtensions.LoadConfiguration(IGeneratorConfigurationProvider configurationProvider,SpecFlowConfigurationHolder configurationHolder)
   at TechTalk.SpecFlow.Generator.Project.ProjectReader.ReadSpecFlowProject(String projectFilePath,String rootNamespace)
   --- End of inner exception stack trace ---
   at TechTalk.SpecFlow.Generator.Project.ProjectReader.ReadSpecFlowProject(String projectFilePath,String rootNamespace)
   at TechTalk.SpecFlow.Generator.Project.MSBuildProjectReader.LoadSpecFlowProjectFromMsBuild(String projectFilePath,String rootNamespace)
   at SpecFlow.Tools.MsBuild.Generation.SpecFlowProjectProvider.GetSpecFlowProject()
   at SpecFlow.Tools.MsBuild.Generation.GenerateFeatureFileCodeBehindTaskExecutor.Execute()
   at SpecFlow.Tools.MsBuild.Generation.GenerateFeatureFileCodeBehindTask.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext() specflowFramework   

我的app.config看起来像：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
    </startup>
    
  <configSections>
    <sectionGroup name="NUnit">
      <section name="TestRunner" type="System.Configuration.NameValueSectionHandler" />
    </sectionGroup>
    <section name="specFlow" type="TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler,TechTalk.SpecFlow" />
  </configSections>
  <specFlow>
   <language feature="en-US" />
   <unitTestProvider name="MSTest" />

   
  </specFlow>
</configuration>

解决方法

不再使用SpecFlow 3在app.config中配置单元测试提供程序。您必须使用适当的NuGet程序包。文档链接：https://docs.specflow.org/projects/specflow/en/latest/Guides/UpgradeSpecFlow2To3.html#changes-to-how-unit-test-providers-are-configured

在这种情况下，您必须将SpecFlow.NUnit包添加到项目中，并将app.config调整为

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <startup> 
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
  </startup>
    
  <configSections>
    <sectionGroup name="NUnit">
      <section name="TestRunner" type="System.Configuration.NameValueSectionHandler" />
    </sectionGroup>
    <section name="specFlow" type="TechTalk.SpecFlow.Configuration.ConfigurationSectionHandler,TechTalk.SpecFlow" />
  </configSections>
  <specFlow>
   <language feature="en-US" />   
  </specFlow>
</configuration>

根据您的单元测试运行程序，正确的NuGet软件包的列表为：https://docs.specflow.org/projects/specflow/en/latest/Installation/Unit-Test-Providers.html

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完全公开：我是SpecFlow和SpecFlow +的开发者和维护者