What is the bare minimum requirements to run Codecov with a .NET Core 2.2.8 application?

We have some “legacy” .NET Core 2.2.8/2.2.207 applications. We’re trying to add codecov before we can migrate up to 3.1.x or 5.x.

When we try and follow the info set out in the coverlet docs/readme, etc … we get the following error:

Starting test execution, please wait… Data collector ‘XPlat code coverage’ message: [coverlet]System.MissingMethodException: Make sure to use .NET core SDK Version >= 2.2.300 —> System.MissingMethodException: Method not found: ‘!!0 Microsoft.VisualStudio.TestPlatform.ObjectModel.DataCollection.SessionStartEventArgs.GetPropertyValue(System.String)’. at Coverlet.Collector.DataCollection.CoverletCoverageCollector.GetPropertyValueWrapper(SessionStartEventArgs sessionStartEventArgs) at Coverlet.Collector.DataCollection.CoverletCoverageCollector.GetTestModules(SessionStartEventArgs sessionStartEventArgs) in //src/coverlet.collector/DataCollection/CoverletCoverageCollector.cs:line 194 — End of inner exception stack trace — at Coverlet.Collector.DataCollection.CoverletCoverageCollector.GetTestModules(SessionStartEventArgs sessionStartEventArgs) in //src/coverlet.collector/DataCollection/CoverletCoverageCollector.cs:line 205 at Coverlet.Collector.DataCollection.CoverletCoverageCollector.OnSessionStart(Object sender, SessionStartEventArgs sessionStartEventArgs) in /_/src/coverlet.collector/DataCollection/CoverletCoverageCollector.cs:line 126.

Here’s a 100% simple repo:

docker pull mcr.microsoft.com/dotnet/core/sdk:2.2.207
docker run --rm -it mcr.microsoft.com/dotnet/core/sdk:2.2.207 /bin/bash
mkdir app
cd app
dotnet new xunit
dotnet add package coverlet.collector --version 1.3.0
dotnet add package microsoft.net.test.sdk
dotnet test --collect:"XPlat Code Coverage"

so we

• start a docker instance of the .NET Core 2.2.207 SDK
• create a new xunit project
• add coverlet.collector
• updated the Test sdk.
• test!

so can someone please help / what are we doing wrong?

SIDE NOTE: we understand that 2.2 is not LTS and we’re just not in a position just yet to move the sdk to 2.1 or 3.1 … so we’re hoping it’s easier/quicker to just get our codecov to work (against the existing codebase) instead of doing and SDK migration (which should be an easy thing … but we’ve got processes to follow)

[MarcoRossignoli]

2.2 is out of support so VSTest team won’t fix this mismatch, also this SDK is out of support https://dotnet.microsoft.com/platform/support/policy/dotnet-core. I’m going to close.

[PureKrome]

Thanks so much @MarcoRossignoli for this! I totally didn’t think of trying the other releases … feels like that was so obvious.

Looking forward to seeing what VSTest team have to say.