[.NET10 RC2] Unset other DOTNET_ROOT env vars when launching apphosts #2585
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jaredpar
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Sep 24, 2025
JoeRobich
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Sep 24, 2025
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/backport to release/10.0.1xx |
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Started backporting to release/10.0.1xx: https://github.com/dotnet/dotnet/actions/runs/18004016280 |
jjonescz
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Should fix problems when
DOTNET_ROOT_<arch>orDOTNET_ROOT(x86)var is set from the outside and the apphost would use those instead of theDOTNET_ROOTvar we set.For example, in NuGet.Client CI: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1156878&view=logs&j=f105d2c8-32d0-5cff-b114-87cf330929dd&t=f92a2093-7359-5d67-e113-8e3692a1dec4&l=94441
Follow up on dotnet/roslyn#80026.
Validated manually (built roslyn+sdk locally, used that sdk with a repro case).