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dotnet --info hitting /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found on Latest net8.0

See original GitHub issue

Describe the bug

After installing the latest 8.0 daily dotnet using the dotnet-install script onto a clean ubuntu-20.04 or ubuntu-22.04 image, running dotnet --info errors out with:

dotnet: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by dotnet)
dotnet: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by dotnet)

To Reproduce

On a clean ubuntu-22.04 image, download the dotnet-install.sh script. Run: .\dotnet-install.sh -Architecture x64 -Channel 8.0 -Quality daily, Run: dotnet --info The failure should occur here.

Exceptions (if any)

dotnet: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by dotnet)
dotnet: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by dotnet)

Further technical details

Last known working SDK version: 8.0.100-preview.3.23178.7 Failing SDK version: 8.0.100-preview.4.23219.2

Thank you!

Issue Analytics

State:
Created 5 months ago
Comments:6 (6 by maintainers)

Top GitHub Comments

1reaction

sbomercommented, Apr 21, 2023

For anyone else who hits this issue: .NET 8 drops support fer CentOS 7 (see the plan in https://github.com/dotnet/runtime/issues/83428). CentOS 7 doesn’t have the newer glibc that we depend on.

1reaction

LoopedBard3commented, Apr 21, 2023

Looks like this was being hit because the centOS container we were using doesn’t have the GLIBCXX versions in the default paths. I am not sure if they have them installed in general, but I found this on SO https://stackoverflow.com/questions/44205687/glibcxx-3-4-21-not-found-on-centos-7 that somewhat indicates it does. To fix this we switched the containers we could to ubuntu 18.04 containers. Thanks for the help!

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