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Re-Bootstrap to .NET 11.0.100-preview.3.26160.111#5385

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Re-Bootstrap to .NET 11.0.100-preview.3.26160.111#5385
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@dotnet-bot dotnet-bot commented Mar 11, 2026

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Re-Bootstrap .NET to 11.0.0-preview.3.26160.111 / 11.0.100-preview.3.26160.111.

@dotnet-bot dotnet-bot requested review from a team as code owners March 11, 2026 08:16
@ViktorHofer

ViktorHofer commented Mar 11, 2026

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System.NullReferenceException->Microsoft.Build.Framework.BuildException.GenericBuildTransferredException: Object reference not set to an instance of an object.
at Microsoft.Build.Tasks.Exec.ValidateParameters()
at Microsoft.Build.Utilities.ToolTask.Execute()

@JanProvaznik in case this rings any bells.

@akoeplinger

akoeplinger commented Mar 11, 2026

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I'm blocked on the rebootstrap so I'd appreciate if this could be looked at with high priority, thanks.

@rainersigwald

rainersigwald commented Mar 11, 2026

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talked with @JanProvaznik offline, and I'd be ok with reverting the MSBuild change to unblock this

@JanProvaznik JanProvaznik mentioned this pull request Mar 11, 2026
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@JanProvaznik

JanProvaznik commented Mar 11, 2026

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there are 2 fundamental problems with msbuild uncovered here but this revert dotnet/msbuild#13367 will solve the specific cases hit in the rebootstrap

rainersigwald pushed a commit to dotnet/msbuild that referenced this pull request Mar 11, 2026
@JanProvaznik
Revert "Migrate Exec task to TaskEnvironment API" (#13367)
7d73e8e 
Reverts #13171

breaks VMR rebootstrap 
dotnet/dotnet#5385


problem 1:
direct instantation of Exec without task environment

problem 2:
task inheriting from Exec pushed to taskhost
@rainersigwald

rainersigwald commented Mar 11, 2026

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@akoeplinger rebootstrapping from a build after #5380 merges should do the trick.

@akoeplinger

akoeplinger commented Mar 12, 2026

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new rebootstrap PR: #5416

@akoeplinger akoeplinger deleted the release-pr-11.0.100-preview.3.26160.111 branch March 12, 2026 17:19
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@dotnet-bot @ViktorHofer @akoeplinger @rainersigwald @JanProvaznik