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Build error: ilc exited with code 57005

area-Infrastructure

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124976 In dotnet/runtime;

· AndyAyersMS opened on Feb 27, 2026

ImmutableArray<T>.IndexOf throws ArgumentOutOfRangeException when startIndex equals Length and count is 0

area-System.Collections

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124968 In dotnet/runtime;

· prozolic opened on Feb 27, 2026

Feature request to System.Text.Json for structured logging scenarios

area-Extensions-Logging

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124961 In dotnet/runtime;

· foriequal0 opened on Feb 27, 2026

Android emulator app crash (SIGABRT) during AttributeTrimming.WorkItemExecution (XHarness APP_CRASH)

arch-x64

area-NativeAOT-coreclr

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

os-android

test-failure

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124958 In dotnet/runtime;

· MatousBot opened on Feb 27, 2026

Include propertyName when KeyNotFoundException is thrown in JsonElement.GetProperty

area-System.Text.Json

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124956 In dotnet/runtime;

· FireAlkazar opened on Feb 27, 2026

JIT <code>assert</code> resolves to C runtime assert

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124954 In dotnet/runtime;

· jakobbotsch opened on Feb 27, 2026

System.IO.Compression.Zstandard.dll missing from benchmark testhost payload

area-Infrastructure-libraries

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124952 In dotnet/runtime;

· ilonatommy opened on Feb 27, 2026

[Mono AOT LLVM] Ssse3.IsSupported evaluates false despite hardware support

area-Codegen-JIT-mono

bug

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124951 In dotnet/runtime;

· ilonatommy opened on Feb 27, 2026

[Mono AOT LLVM] SIGSEGV in AsciiStringSearchValuesTeddyBase.IndexOfAnyN3Vector128 with Compiled regex

area-Codegen-JIT-mono

bug

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#124950 In dotnet/runtime;

· ilonatommy opened on Feb 27, 2026

[clr-ios] Implement Swift calling convention in CoreCLR interpreter on x64

area-CodeGen-Interpreter-coreclr

os-iosApple iOSApple iOS

Status: Open.

#124949 In dotnet/runtime;

· kotlarmilos opened on Feb 27, 2026

·  

Future

[coreclr] <code>OverrideBootConfigName</code> timeouts in publish and build

arch-wasmWebAssembly architectureWebAssembly architecture

area-Infrastructure-coreclr

os-browserBrowser variant of arch-wasmBrowser variant of arch-wasm

Status: Open.

#124947 In dotnet/runtime;

· ilonatommy opened on Feb 27, 2026

·  

Future

[coreclr] <code>DownloadProgressFinishes(failAssemblyDownload: True)</code> times out

arch-wasmWebAssembly architectureWebAssembly architecture

area-Infrastructure-coreclr

os-browserBrowser variant of arch-wasmBrowser variant of arch-wasm

Status: Open.

#124946 In dotnet/runtime;

· ilonatommy opened on Feb 27, 2026

·  

Future