System.TypeLoadException:“Could not load type 'OpenTelemetry.Internal.ConfigurationExtensions' from assembly 'OpenTelemetry, Version=1.0.0.0, Culture=neutral, PublicKeyToken=7bd6737fe5b67e3c'.”

[PSC-F]

need upgrade to 1.8.1

[CodeBlanch]

@PSC-F What OTel package versions are you using? Are you mixing prerelease & stable versions? My guess is this is the same as #5477 which should be fixed in the next release cycle.

[maxgolov]

I see another very similar issue. I believe it has the same root cause with another piece of it on .NET 8 and with v1.8.1 . I believe the best fix would be to start updating AssemblyVersion whenever your API/ABI breaks. That will address all ambiguities with the nuget/build system DLL version resolution. Otherwise the build system gets confused, esp. with many nuget packages in the build potentially referencing different versions of OTel.. You'd get the build system polluted with different binaries. Binary incompatible, but all versioned with AssemblyVersion=v1.0.0.0.