fix: update Incrementalist to 1.2.2 for SDK 10.0.4xx compatibility - #8473
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The hosted build agents now preinstall .NET SDK 10.0.400, and Incrementalist 1.2.1's bundled MSBuild assemblies cannot evaluate the 10.0.4xx SDK targets. Every CI job that runs Incrementalist crashes opening the solution before anything compiles: InvalidProjectFileException: The expression "[Microsoft.Build.Utilities.ToolLocationHelper]::GetPlatformSDKLocation(Windows, 7.0)" cannot be evaluated. Could not load type 'DebugTraceInterpolatedStringHandler' from assembly 'Microsoft.Build.Framework, Version=15.1.0.0'. Incrementalist 1.2.2 (released 2026-08-18) exists for exactly this: it bundles MSBuild 18.9.6 and NuGet.Frameworks 7.9.0 to match the 10.0.4xx band. Bumping the tool fixes the root cause and keeps CI tracking current SDKs, where pinning the SDK band would only mask it.
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CI is currently red on every PR: the hosted agents began preinstalling .NET SDK 10.0.400, and Incrementalist 1.2.1's bundled MSBuild assemblies cannot evaluate the 10.0.4xx SDK targets. It crashes opening the solution before anything compiles:
First seen on build 130767. The failure is in Incrementalist's solution load, so it hits every job on every branch regardless of content.
Fix: bump the tool manifest to Incrementalist 1.2.2 (released 2026-08-18), which bundles MSBuild 18.9.6 and NuGet.Frameworks 7.9.0 to match the 10.0.4xx band - this exact failure is what that release addresses. Root-cause fix rather than pinning the SDK band, so CI keeps tracking current SDKs.
An earlier revision of this PR pinned
global.jsonto the 10.0.1xx feature band instead; superseded by the tool bump.Verified locally:
dotnet tool restoreresolves 1.2.2 and it loads the solution config cleanly. The real validation is this PR's own CI run, which executes 1.2.2 on the 10.0.400 hosted image.