SpecFlow doesn't work with .NET Core 3.1.200 SDK #1912

SabotageAndi · 2020-03-17T13:09:00Z

SpecFlow Version:

Used Test Runner

SpecFlow+Runner
MSTest
NUnit
Xunit

Version number:

Project Format of the SpecFlow project

Classic project format using packages.config
Classic project format using <PackageReference> tags
Sdk-style project format

.feature.cs files are generated using

SpecFlow.Tools.MsBuild.Generation NuGet package
SpecFlowSingleFileGenerator custom tool

Visual Studio Version

VS 2019
VS 2017
VS 2015

`Enable SpecFlowSingleFileGenerator Custom Tool` option in Visual Studio extension settings

Enabled
Disabled

Are the latest Visual Studio updates installed?

Yes
No, I use Visual Studio version <Major>.<Minor>.<Patch>

.NET Framework:

Test Execution Method:

Visual Studio Test Explorer
TFS/VSTS/Azure DevOps – Task – PLEASE SPECIFY THE NAME OF THE TASK
Command line – dotnet test

Issue Description

When using the .NET Core 3.1.200 SDK, the MSBuild Generation fails with following error:

C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error : [SpecFlow] System.IO.FileNotFoundException: Could not load file or assembly 'TechTalk.SpecFlow, Version=3.1.0.0, Culture=neutral, PublicKeyToken=0778194805d6db41'. The system cannot find the file specified. [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error : File name: 'TechTalk.SpecFlow, Version=3.1.0.0, Culture=neutral, PublicKeyToken=0778194805d6db41' [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
t32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(MetadataToken caCtorToken, MetadataImport& scope, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, ListBuilder`1& derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, Boolean& isVarArg) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Reflection.CustomAttribute.AddCustomAttributes(ListBuilder`1& attributes, RuntimeModule decoratedModule, Int32 decoratedMetadataToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, ListBuilder`1 derivedAttributes) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Reflection.RuntimeAssembly.GetCustomAttributes(Type attributeType, Boolean inherit) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Attribute.GetCustomAttributes(Assembly element, Type attributeTC:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Attribute.GetCustomAttribute(Assembly element, Type attributeType, Boolean inherit) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at System.Attribute.GetCustomAttribute(Assembly element, Type attributeType) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at TechTalk.SpecFlow.Generator.Plugins.GeneratorPluginLoader.LoadPlugin(PluginDescriptor pluginDescriptor) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at TechTalk.SpecFlow.Generator.GeneratorContainerBuilder.LoadPlugin(PluginDescriptor pluginDescriptor, IGeneratorPluginLoader pluginLoader, GeneratorPluginEvents generatorPluginEvents, UnitTestProviderConfiguration unitTestProviderConfigration) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at TechTalk.SpecFlow.Generator.GeneratorContainerBuilder.LoadPlugins(ObjectContainer container, GeneratorPluginEvents generatorPluginEvents, UnitTestProviderConfiguration unitTestProviderConfigration, IEnumerable`1 generatorPlugins) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at TechTalk.SpecFlow.Generator.GeneratorContainerBuilder.CreateContainer(SpecFlowConfigurationHolder configurationHolder, ProjectSettings projectSettings, IEnumerable`1 generatorPlugins) [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :    at SpecFlow.Tools.MsBuild.Generation.GenerateFeatureFileCodeBehindTask.Execute() [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :  [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]
C:\Users\awi\.nuget\packages\specflow.tools.msbuild.generation\3.1.62\build\SpecFlow.Tools.MsBuild.Generation.targets(93,5): error :  [C:\work\SpecFlow-Examples\NETCore Examples\BowlingKata-SpecFlowJson-xUnit\Bowling.SpecFlowXUnit\Bowling.SpecFlowXUnit.csproj]

Steps to Reproduce

Workaround

Set Environment variable to get all MSBuild behaviour:

MSBUILDSINGLELOADCONTEXT=1

The text was updated successfully, but these errors were encountered:

puco · 2020-03-17T15:52:07Z

Having the same issue in Docker build. Was using mcr.microsoft.com/dotnet/core/sdk:3.1-alpine and switched to mcr.microsoft.com/dotnet/core/sdk:3.1.102-alpine. Noticed that 3.1.200 uses MSBuild 16.5, whereas 3.1.102 uses 16.4

trondgod · 2020-03-17T19:24:23Z

The SDK version 3.1.102 seems to be gone...
microsoft/azure-pipelines-tasks#12540

SabotageAndi · 2020-03-17T22:42:40Z

@trondgod They have it on their download page: https://dotnet.microsoft.com/download/dotnet-core/3.1
Looks like 3.1.102 was released with 3.1.200 and the difference is the supported VS version (which is also MSBuild version).

dasMulli · 2020-03-18T09:07:30Z

MSBuild 16.5 has a new assembly loading approach for tasks that may have side effects. (which has been an ask for years, but it behaves a bit differently when loading dependencies)
You can try to set MSBUILDSINGLELOADCONTEXT=1 (env var) to get the old behavior.

rainersigwald · 2020-03-18T11:17:49Z

@SabotageAndi I suspect @dasMulli has correctly identified the reason this is happening. But I'm not sure exactly what the problem is. Is there an easy way to get a small repro project so that I can debug the assembly loading behavior?

SabotageAndi · 2020-03-18T11:56:38Z

@rainersigwald I am working on a repro right now.

SabotageAndi · 2020-03-18T14:24:53Z

@rainersigwald I have it.

You can find it here: https://github.com/SabotageAndi/GH1912

Simply build it with the included build.ps1 script.

If building with .NET Core SDK 3.1.200 I get following output:

PS C:\work\GH1912Repro> .\build.ps1
Microsoft (R) Build Engine version 16.5.0+d4cbfca49 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Restore completed in 241,96 ms for C:\work\GH1912Repro\Common\Common.csproj.
  Restore completed in 298,88 ms for C:\work\GH1912Repro\MSBuildTask\MSBuildTask.csproj.
  Common -> C:\work\GH1912Repro\Common\bin\Debug\netstandard2.0\Common.dll
  MSBuildTask -> C:\work\GH1912Repro\MSBuildTask\bin\Debug\netcoreapp2.0\MSBuildTask.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:01.53
Microsoft (R) Build Engine version 16.5.0+d4cbfca49 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Restore completed in 35,71 ms for C:\work\GH1912Repro\MSBuildTask\MSBuildTask.csproj.
  Restore completed in 35,71 ms for C:\work\GH1912Repro\Common\Common.csproj.
  Restore completed in 174,62 ms for C:\work\GH1912Repro\App\App.csproj.
  Restore completed in 174,59 ms for C:\work\GH1912Repro\Plugin\Plugin.csproj.
  Common -> C:\work\GH1912Repro\Common\bin\Debug\netstandard2.0\Common.dll
  MSBuildTask -> C:\work\GH1912Repro\MSBuildTask\bin\Debug\netcoreapp2.0\MSBuildTask.dll
  Plugin -> C:\work\GH1912Repro\Plugin\bin\Debug\netstandard2.0\Plugin.dll
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018: The "AssemblyLoadTask" task failed unexpectedly.
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018: System.IO.FileNotFoundException: Could not load file or assembly 'Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018: File name: 'Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(MetadataToken caCtorToken, MetadataImport& scope, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, ListBuilder`1& derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, BooleaC:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.AddCustomAttributes(ListBuilder`1& attributes, RuntimeModule decoratedModule, Int32 decoratedMetadataToken, RuntC:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.RuntimeAssembly.GetCustomAttributes(Type attributeType, Boolean inherit)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Attribute.GetCustomAttributes(Assembly element, Boolean inherit)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttributeExtensions.GetCustomAttributes(Assembly element)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at MSBuildTask.AssemblyLoadTask.Execute() in C:\work\GH1912Repro\MSBuildTask\AssemblyLoadTask.cs:line 19
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:

Build FAILED.

C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018: The "AssemblyLoadTask" task failed unexpectedly.
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018: System.IO.FileNotFoundException: Could not load file or assembly 'Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018: File name: 'Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(MetadataToken caCtorToken, MetadataImport& scope, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, ListBuilder`1& derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, Boolean& isVarArg)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.AddCustomAttributes(ListBuilder`1& attributes, RuntimeModule decoratedModule, Int32 decoratedMetadataToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, ListBuilder`1 derivedAttributes)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.RuntimeAssembly.GetCustomAttributes(Type attributeType, Boolean inherit)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Attribute.GetCustomAttributes(Assembly element, Boolean inherit)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at System.Reflection.CustomAttributeExtensions.GetCustomAttributes(Assembly element)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at MSBuildTask.AssemblyLoadTask.Execute() in C:\work\GH1912Repro\MSBuildTask\AssemblyLoadTask.cs:line 19
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask)
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:
C:\work\GH1912Repro\App\App.csproj(15,5): error MSB4018:
    0 Warning(s)
    1 Error(s)

Time Elapsed 00:00:02.23

With .NET Core SDK 3.1.102 I get this output:

Microsoft (R) Build Engine version 16.4.0+e901037fe for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Restore completed in 182,73 ms for C:\work\GH1912Repro\MSBuildTask\MSBuildTask.csproj.
  Restore completed in 182,73 ms for C:\work\GH1912Repro\Common\Common.csproj.
  Common -> C:\work\GH1912Repro\Common\bin\Debug\netstandard2.0\Common.dll
  MSBuildTask -> C:\work\GH1912Repro\MSBuildTask\bin\Debug\netcoreapp2.0\MSBuildTask.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:01.37
Microsoft (R) Build Engine version 16.4.0+e901037fe for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Restore completed in 29,24 ms for C:\work\GH1912Repro\Common\Common.csproj.
  Restore completed in 29,44 ms for C:\work\GH1912Repro\MSBuildTask\MSBuildTask.csproj.
  Restore completed in 141,4 ms for C:\work\GH1912Repro\App\App.csproj.
  Restore completed in 141,39 ms for C:\work\GH1912Repro\Plugin\Plugin.csproj.
  Common -> C:\work\GH1912Repro\Common\bin\Debug\netstandard2.0\Common.dll
  MSBuildTask -> C:\work\GH1912Repro\MSBuildTask\bin\Debug\netcoreapp2.0\MSBuildTask.dll
  Plugin -> C:\work\GH1912Repro\Plugin\bin\Debug\netstandard2.0\Plugin.dll
  App -> C:\work\GH1912Repro\App\bin\Debug\netcoreapp3.1\App.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:02.42

I hope this helps you.

rainersigwald · 2020-03-18T19:05:15Z

@SabotageAndi that is an amazing repro! Thank you! I reproduce the problem with it and will take a look.

rainersigwald · 2020-03-18T20:50:35Z

One quick note: with @SabotageAndi's repro, MSBUILDSINGLELOADCONTEXT=1 does appear to work around the problem. I would recommend that over downgrading VS or the SDK.

dotnet/sdk#10878 SpecFlowOSS/SpecFlow#1912

SabotageAndi · 2020-03-24T10:27:04Z

@rainersigwald any news on this issue?

rainersigwald · 2020-03-26T12:02:51Z

No news yet, sorry. Filed dotnet/msbuild#5202 to keep it top of mind for my team.

SabotageAndi · 2020-03-26T13:04:32Z

Do you think we could do something on our side to get around the issue? More and more people are hitting this issue.

rainersigwald · 2020-03-26T14:29:11Z

Your repro case uses Assembly.LoadFile(path) to load a dependent assembly. On .NET Core 3.1 (at least, probably since 2.0?), this creates a new AssemblyLoadContext--on my machine it's named Assembly.LoadFile(S:\repro\SpecFlowOSS\SpecFlow\issues\1912\Plugin\bin\debug\netstandard2.0\Plugin.dll).

The docs for Assembly.LoadFile say

LoadFile does not load files into the load-from context, and does not resolve dependencies using the load path, as the LoadFrom method does.

That's exactly what's happening here: it's failing to resolve dependencies using the path of the loaded file.

This worked before 3.1.200/MSBuild 16.5, because MSBuild installed an assembly load hook into the default ALC that would load dependencies from "any directory next to a loaded task assembly".

If I use LoadFrom instead,

diff --git a/MSBuildTask/AssemblyLoadTask.cs b/MSBuildTask/AssemblyLoadTask.cs
index d0c5010..fa497ba 100644
--- a/MSBuildTask/AssemblyLoadTask.cs
+++ b/MSBuildTask/AssemblyLoadTask.cs
@@ -14,7 +14,7 @@ namespace MSBuildTask
         public override bool Execute()
         {
             var path = Path.Combine(Environment.CurrentDirectory, "..", "Plugin", "bin", "debug", "netstandard2.0", "Plugin.dll");
-            var assembly = Assembly.LoadFile(path);
+            var assembly = Assembly.LoadFrom(path);
             
             var customAttributes = assembly.GetCustomAttributes();
             var pluginAttribute = (PluginMarkerAttribute)customAttributes.SingleOrDefault(a => a is PluginMarkerAttribute);

your repro case works fine.

I think that's the right way to go. I first thought that you might be using LoadFile to work around the original problem that caused us to introduce ALCs for tasks--being able to load the same task in multiple versions. But LoadFile doesn't do that, because the transitive references get loaded into the default ALC anyway.

SabotageAndi · 2020-03-26T14:40:11Z

Thanks for the input. I will try to use Assembly.LoadFrom and see if this changes something.

magicben · 2020-03-31T07:40:14Z

Thanks for the input. I will try to use Assembly.LoadFrom and see if this changes something.

Hi @SabotageAndi , hope everything is fine on your side.
Did you have time to work on this fix?
Take care.

SabotageAndi · 2020-03-31T07:48:35Z

@magicben I am still looking into it. No new news yet.

SabotageAndi · 2020-05-04T14:25:52Z

Some status updates:
We (@tzongithub and me) started with the first step to fix this issue. That is to change our MSBuild task from .NET Standard 2.0 to .NET Core 2.1. PR: #1968

The next step will be to change the Assembly loading code.

SabotageAndi · 2020-05-06T12:09:32Z

We merged the last PR for this to fix. Build is now running to create new packages.
When the release pipeline is finished, you find SpecFlow 3.3-beta packages on NuGet.org.

CurlyFire · 2020-05-06T12:35:19Z

@SabotageAndi Great! How long does a release stay in beta usually ?

SabotageAndi · 2020-05-06T12:42:16Z

@CurlyFire Depends from version to version. This will be at least 3 weeks in beta. We have some additional changes planned in our next iteration (starts next Tuesday).

SabotageAndi · 2020-05-08T11:36:01Z

We published a first 3.3-beta package to NuGet.org (https://www.nuget.org/packages/SpecFlow/3.3.15-beta) which a fix for this.

Please try it out and give us feedback if it is now working for you.

js8080 · 2020-05-08T16:03:19Z

@SabotageAndi seems to be working for me.

see SpecFlowOSS/SpecFlow#1912

smushtaq · 2020-05-11T12:44:01Z

We published a first 3.3-beta package to NuGet.org (https://www.nuget.org/packages/SpecFlow/3.3.15-beta) which a fix for this.

Please try it out and give us feedback if it is now working for you.

worked for me. I used 3.3.16-beta

MarcWils · 2020-05-11T12:59:41Z

Works like a charm.

alanta · 2020-05-12T07:19:47Z

3.3.16-beta works for me as well

arkiaconsulting · 2020-05-12T07:51:29Z

Confirmed 3.3.16-beta

SabotageAndi · 2020-05-15T13:56:24Z

Thanks for the feedback. I am closing now this issue.

* Add Elastisearch to team shared dictionary * initial commit * clean up implemntations and error reporting * always add frames * Initial stab at tests using prerelease package * Linux compilation fixes being bit by: SpecFlowOSS/SpecFlow#1912 * Introduce more unit tests around Elasticsearch integration * remove unused variable * Remove dependency on Elastic.Managed.Ephemeral Only used in example project, switched to one that talks to elastic/apm-integration-testing. * bump Elasticsearch.Net reference * Apply suggestions from code review Co-authored-by: Gergely Kalapos <gergo@kalapos.net> * Log DiagnosticEventKey on Trace * Try catch around calling OnNext() * update failing test, assertion could never be satisfied, Added assertions on reported exception Co-authored-by: Gergely Kalapos <gergo@kalapos.net>

Mutualization of Specflow reference. Using Specflow 3.3.22-beta (only for test project) to resolve the following issue SpecFlowOSS/SpecFlow#1912

Update DevOps Pipeline to workaround SpecFlowOSS/SpecFlow#1912

github-actions · 2021-01-25T15:26:04Z

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

SabotageAndi added Bug Generator .NET Core Support msbuild labels Mar 17, 2020

SabotageAndi mentioned this issue Mar 17, 2020

Multiple "Could not load file or assembly errors" after updating to Specflow 3 and MsBuild #1717

Closed

32 tasks

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SabotageAndi mentioned this issue Mar 18, 2020

MSB4062 when running build on Azure DevOps Hosted Ubuntu 16.04 #1699

Open

33 tasks

leotsarev added a commit to leotsarev/SpecFlow.TestProjectGenerator that referenced this issue Mar 19, 2020

Pin version of used SDK to workaround of buggy SDK version

f0e0577

dotnet/sdk#10878 SpecFlowOSS/SpecFlow#1912

leotsarev mentioned this issue Mar 19, 2020

Pin version of used SDK to workaround of buggy SDK version SpecFlowOSS/SpecFlow.TestProjectGenerator#27

Closed

rainersigwald mentioned this issue Mar 26, 2020

AssemblyLoadContext-related task errors in 16.5 dotnet/msbuild#5202

Closed

7 tasks

bonesoul mentioned this issue Mar 27, 2020

the combination of VS 2019 Version 16.5.0 Preview 2.0 and .NET Core 3.1.200-preview-014883 fails dotnet build GitTools/GitVersion#2063

Closed

SabotageAndi added the SpecFlow Team Backlog this issue are in the backlog of the SpecFlow Team label May 4, 2020

tzongithub mentioned this issue May 5, 2020

#1912 Load generator plugin with .net core AssemblyLoadContext #1971

Merged

7 tasks

SabotageAndi closed this as completed in #1971 May 6, 2020

SabotageAndi pushed a commit that referenced this issue May 6, 2020

#1912 Load generator plugin with .net core AssemblyLoadContext (#1971)

2af8df7

SabotageAndi reopened this May 6, 2020

benbelow added a commit to Anthony-Nolan/Atlas that referenced this issue May 11, 2020

fix: explicitly specify dotnet 3.1.102 in tests build

a22c68e

see SpecFlowOSS/SpecFlow#1912

SabotageAndi mentioned this issue May 12, 2020

Building solution fails in Azure DevOps pipeline #1986

Closed

10 tasks

SabotageAndi mentioned this issue May 13, 2020

Scenario info arguments #1988

Merged

SabotageAndi closed this as completed May 15, 2020

AdCodicem mentioned this issue Jun 9, 2020

Fix DependencyInjectionPluginFramework in build.targets solidtoken/SpecFlow.DependencyInjection#30

Closed

idg10 mentioned this issue Jun 12, 2020

Enable selection of latest SDK endjin/Endjin.RecommendedPractices.AzureDevopsPipelines.GitHub#26

Closed

SabotageAndi mentioned this issue Jun 22, 2020

SpecFlow doesn't work with .NET Core 3.1.301 SDK #2019

Closed

temelj mentioned this issue Jun 25, 2020

Specflow Test with Data Tables runs from Agent or Client Fails on Azure Pipeline VS Test Task microsoft/azure-pipelines-tasks#13174

Closed

imzyk added a commit to imzyk/UI_Automation_Framwork that referenced this issue Jul 10, 2020

Update azure-pipelines.yml

4939f50

Update DevOps Pipeline to workaround SpecFlowOSS/SpecFlow#1912

amvi88 mentioned this issue Sep 7, 2020

Support for SpecFlow 3.3 Noksa/Allure.NUnit#50

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SpecFlow doesn't work with .NET Core 3.1.200 SDK #1912

SpecFlow doesn't work with .NET Core 3.1.200 SDK #1912

SabotageAndi commented Mar 17, 2020 •

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SpecFlow doesn't work with .NET Core 3.1.200 SDK #1912

SpecFlow doesn't work with .NET Core 3.1.200 SDK #1912

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SabotageAndi commented Mar 17, 2020 • edited Loading

SpecFlow Version:

Used Test Runner

Project Format of the SpecFlow project

.feature.cs files are generated using

Visual Studio Version

Enable SpecFlowSingleFileGenerator Custom Tool option in Visual Studio extension settings

Are the latest Visual Studio updates installed?

.NET Framework:

Test Execution Method:

Issue Description

Steps to Reproduce

Workaround

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magicben commented Mar 31, 2020

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CurlyFire commented May 6, 2020

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SabotageAndi commented Mar 17, 2020 •

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`Enable SpecFlowSingleFileGenerator Custom Tool` option in Visual Studio extension settings

trondgod commented Mar 17, 2020 •

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SabotageAndi commented Mar 17, 2020 •

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dasMulli commented Mar 18, 2020 •

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