Azure devops pipeline failing on unit test .net fx 4.8

Question

I have a very simple solution that uses .Net Framework 4.8 and in my pipeline I've taken defaults for a build using asp.net (not the .core one). I have one and only one test failing.

# ASP.NET  
# Build and test ASP.NET projects.  
# Add steps that publish symbols, save build artifacts, deploy, and more:  
# https://learn.microsoft.com/azure/devops/pipelines/apps/aspnet/build-aspnet-4  
  
trigger:  
- master  
  
pool: rspool  
    
  
variables:  
  solution: '**/*.sln'  
  buildPlatform: 'Any CPU'  
  buildConfiguration: 'Release'  
  
steps:  
- task: NuGetToolInstaller@1  
  
- task: NuGetCommand@2  
  inputs:  
    restoreSolution: '$(solution)'  
  
- task: VSBuild@1  
  inputs:  
    solution: '$(solution)'  
    msbuildArgs: '/p:DeployOnBuild=true /p:WebPublishMethod=Package /p:PackageAsSingleFile=true /p:SkipInvalidConfigurations=true /p:PackageLocation="$(build.artifactStagingDirectory)"'  
    platform: '$(buildPlatform)'  
    configuration: '$(buildConfiguration)'  
  
- task: VSTest@2  
  inputs:  
    platform: '$(buildPlatform)'  
    configuration: '$(buildConfiguration)'  

Answer 1

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Answer 2