Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Unable to use ReadyToRun on Debian 8 due to incorrect runtime bits resolution by SDK

See original GitHub issue

Original bug: https://github.com/dotnet/coreclr/issues/24565

Repro app is here: https://github.com/wieslawsoltes/Draw2D. To repro:

clone
Edit Draw2D.csproj and add netcoreapp3.0 to the list of target frameworks
run this command:

dotnet publish ./src/Draw2D/Draw2D.csproj -f netcoreapp3.0 -c Release -r debian.8-x64 -o Draw2D_netcoreapp3.0_debian.8-x64

Running the application throws a Failed to initialize CoreCLR,, HRESULT: 0x80131500 error.

Looking at the msbuild verbose logs, you can see that the SDK is copying the runtime bits from the runtime.debian.8-x64.microsoft.netcore.runtime.coreclr/1.0.7/runtimes/debian.8-x64 package, which is incorrect.

On Debian9 targets, the runtime bits are copied correctly (version 3). On Debian8, the SDK doesn’t resolve correctly. Here’s an example error I got:

/home/fadi/dotnet_preview5/sdk/3.0.100-preview5-011569/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.ConflictResolution.targets(39,5): message NETSDK1041: Encountered conflict between 'CopyLocal:/home/fadi/.nuget/packages/runtime.debian.8-x64.microsoft.netcore.runtime.coreclr/1.0.7/runtimes/debian.8-x64/native/libcoreclr.so' and 'CopyLocal:/home/fadi/.nuget/packages/runtime.linux-x64.microsoft.netcore.app/3.0.0-preview5-27709-08/runtimes/linux-x64/native/libcoreclr.so'.  NETSDK1037: Could not determine winner due to equal file and assembly versions. [/home/fadi/git/Draw2D/src/Draw2D/Draw2D.csproj]

Also, it ends up copying the runtime bits from the 1.0.7 runtime package. Example:

Copying file from "/home/fadi/.nuget/packages/runtime.debian.8-x64.microsoft.netcore.runtime.coreclr/1.0.7/runtimes/debian.8-x64/native/libcoreclr.so" to "/home/fadi/git/Draw2D/src/Draw2D/bin/Release/netcoreapp3.0/debian.8-x64/libcoreclr.so".