I'm working on a netcore2.2 based solution. When NCrunch is enabled, all test projects fail to build with an exception:
An error occurred while analysing this project after it was built: System.IO.FileNotFoundException: Could not load file or assembly 'xunit.runner.utility.netstandard15, Version=2.2.0.3545, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c'. The system cannot find the file specified.
File name: 'xunit.runner.utility.netstandard15, Version=2.2.0.3545, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c'
at nCrunch.Module.XUnit2.Integration.XUnit2DiscoveryEnvironment.<>c__DisplayClass2_0.<FindFrameworkTestsInAssembly>b__1()
at nCrunch.Common.PerformanceTracking.PerfTracker.TrackActivity(String name, Action activity)
at nCrunch.Module.XUnit2.Integration.XUnit2DiscoveryEnvironment.FindFrameworkTestsInAssembly(ReflectedAssembly assembly, FilePath assemblyFilePath, IList`1 referencedAssemblyFilePaths, ComponentUniqueName testComponentUniqueName, PlatformType platformType, DynamicProxy[] dynamicProxies)
at nCrunch.TestExecution.TestFinder.<>c__DisplayClass2_2.<FindTestsForFrameworks>b__2()
at nCrunch.Common.PerformanceTracking.PerfTracker.TrackActivity(String name, Action activity)
at nCrunch.TestExecution.TestFinder.<>c__DisplayClass2_0.<FindTestsForFrameworks>b__0()
at nCrunch.Common.PerformanceTracking.PerfTracker.TrackActivity(String name, Action activity)
at nCrunch.TestExecution.TestFinder.FindTestsForFrameworks(ReflectedAssembly assembly, FilePath assemblyFilePath, IList`1 referencedAssemblyFilePaths, DescribedTestFrameworkDiscoverer[] describedDiscoverers, ComponentUniqueName testComponentUniqueName, PlatformType platformType, DynamicProxy[] dynamicProxies)
at nCrunch.TestExecution.RemoteTaskRunner.AnalyseAssembly(DescribedTestFrameworkDiscoverer[] applicableFrameworks, ComponentUniqueName testComponentUniqueName, PerfTracker perfTracker)
Below is a sample .csproj from one of the test projects
- If you have any binding redirections in place, could you try removing them to see if this changes anything
- Could you try removing the reference to xunit.runner.visualstudio to see if this changes anything
- Could you try creating a small sample project that references only the latest version of Xunit and contains only one test, to see if this works? This will help establish if the problem is on your machine or in the solution itself.
Inside any sample project, could you try introducing a package reference to the xunit.runner.utility Nuget package, then build the project? This will cause Nuget to ensure the package is downloaded and installed on your machine. NCrunch should normally restore this package automatically and it should warn you if it wasn't able to do so.
If the above doesn't work, could you try introducing a package reference to the xunit.runner.utility package from inside the test project encountering the problem?
If neither of the above work, I might need to ask for a sample project from you that can reproduce this problem so that I can investigate it further. You're welcome to submit any code samples through the NCrunch contact form.
I've uploaded a sample solution to a private GitHub repo and added you as a collaborator: https://github.com/mmisztal1980/ncrunch-netstandard15-repro/invitations
Just checked - still fails.
Thanks for sending through the sample solution. This really helped with analysing the issue. It appears to be a reference clash involving xunit.runner.utility (which is also used by NCrunch to interact with xunit).
Would you like to try the build below to see if this solves the problem for you?