[browser][coreCLR] Wasm.Console.Node.Sample - undefined symbol: SystemInteropJS_GetManagedStackTrace

[jakobbotsch]

Seeing this on multiple PRs:

2026-06-09T19:58:42.0544708Z   Compiling generated managed-to-native sources with emcc -O2 ...
2026-06-09T19:58:42.5837769Z   [1/3] callhelpers-pinvoke.cpp -> callhelpers-pinvoke.o [took 0.52s]
2026-06-09T19:58:42.6555515Z   [2/3] callhelpers-interp-to-managed.cpp -> callhelpers-interp-to-managed.o [took 0.60s]
2026-06-09T19:58:42.7308959Z   [3/3] callhelpers-reverse.cpp -> callhelpers-reverse.o [took 0.67s]
2026-06-09T19:58:42.7432963Z   Linking CoreCLR WASM with initial memory 33554432 bytes.
2026-06-09T19:58:42.7435788Z   Linking with emcc -O2. This may take a while ...
2026-06-09T19:58:44.1657941Z wasm-ld : error : C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so: undefined symbol: SystemInteropJS_GetManagedStackTrace. Required by BrowserHost_ExternalAssemblyProbe [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.1659111Z wasm-ld : error : C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so: undefined symbol: SystemInteropJS_CallDelegate. Required by BrowserHost_ExternalAssemblyProbe [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.1660028Z wasm-ld : error : C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so: undefined symbol: SystemInteropJS_CompleteTask. Required by BrowserHost_ExternalAssemblyProbe [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.1660942Z wasm-ld : error : C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so: undefined symbol: SystemInteropJS_ReleaseJSOwnedObjectByGCHandle. Required by BrowserHost_ExternalAssemblyProbe [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.1661809Z wasm-ld : error : C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so: undefined symbol: SystemInteropJS_BindAssemblyExports. Required by BrowserHost_ExternalAssemblyProbe [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.1662677Z wasm-ld : error : C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so: undefined symbol: SystemInteropJS_CallJSExport. Required by BrowserHost_ExternalAssemblyProbe [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.2031904Z emcc : error : 'D:/a/_work/1/s/src/mono/browser/emsdk/bin\wasm-ld.exe -o D:\a\_work\1\s\artifacts\obj\mono\Wasm.Console.Node.Sample\browser.wasm.Release\wasm\for-publish\dotnet.native.wasm D:\a\_work\1\s\artifacts\obj\mono\Wasm.Console.Node.Sample\browser.wasm.Release\wasm\for-publish\callhelpers-pinvoke.o D:\a\_work\1\s\artifacts\obj\mono\Wasm.Console.Node.Sample\browser.wasm.Release\wasm\for-publish\callhelpers-reverse.o D:\a\_work\1\s\artifacts\obj\mono\Wasm.Console.Node.Sample\browser.wasm.Release\wasm\for-publish\callhelpers-interp-to-managed.o D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libBrowserHost.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libcoreclr_static.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libnativeresourcestring.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libgcinfo_unix_wasm.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libcoreclrminipal.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libcoreclrpal.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libminipal.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libSystem.Native.Browser.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libSystem.Runtime.InteropServices.JavaScript.Native.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libSystem.Native.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libSystem.Globalization.Native.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libicuuc.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libicui18n.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libicudata.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libSystem.IO.Compression.Native.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libz.a D:\a\_work\1\s\artifacts\bin\microsoft.netcore.app.runtime.browser-wasm\Release\runtimes\browser-wasm\native\libSystem.Native.TimeZoneData.a --export=__stack_pointer --error-limit=0 -LD:\a\_work\1\s\src\mono\browser\emsdk\emscripten\cache\sysroot\lib\wasm32-emscripten -lGL-getprocaddr -lal -lhtml5 -lbulkmemory -lstubs -lc -ldlmalloc -lcompiler_rt-wasm-sjlj -lc++-except -lc++abi-except -lunwind-except -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -wasm-enable-sjlj -mllvm -disable-lsr -mllvm -wasm-enable-eh -mllvm -exception-model=wasm C:\Users\CLOUDT~1\AppData\Local\Temp\tmpqm0a9ffblibemscripten_js_symbols.so --export=free --export=htons --export=malloc --export=sbrk --export=memalign --export=posix_memalign --export=memset --export=ntohs --export=stackAlloc --export=stackRestore --export=stackSave --export=__stack_pointer --export=stackAlloc --export=__funcs_on_exit --export=__trap --export=__wasm_call_ctors --export=BrowserHost_CreateHostContract --export=BrowserHost_InitializeDotnet --export=BrowserHost_ExecuteAssembly --export=BrowserHost_ShutdownDotnet --export=SystemInteropJS_GetManagedStackTrace --export=SystemInteropJS_CallDelegate --export=SystemInteropJS_CompleteTask --export=SystemInteropJS_ReleaseJSOwnedObjectByGCHandle --export=SystemInteropJS_BindAssemblyExports --export=SystemInteropJS_CallJSExport --export=SystemJS_ExecuteTimerCallback --export=SystemJS_ExecuteBackgroundJobCallback --export=SystemJS_ExecuteFinalizationCallback --export=SystemJS_ExecuteDiagnosticServerCallback --export=GetDotNetRuntimeContractDescriptor --export=_exit --export=stackSave --export=stackRestore --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=fflush --export-table --growable-table -z stack-size=2097152 --max-memory=2147483648 --initial-memory=33554432 --no-entry --table-base=1 --global-base=1024' failed (returned 1) [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.2280521Z D:\a\_work\1\s\src\mono\browser\build\BrowserWasmApp.CoreCLR.targets(643,5): error MSB3073: The command ""D:\a\_work\1\s\src\mono\browser\emsdk\emscripten\emcc" -fwasm-exceptions -msimd128 "@D:\a\_work\1\s\artifacts\obj\mono\Wasm.Console.Node.Sample\browser.wasm.Release\wasm\for-publish\emcc-link.rsp"" exited with code 1. [D:\a\_work\1\s\src\mono\sample\wasm\console-node\Wasm.Console.Node.Sample.csproj]
2026-06-09T19:58:44.3561395Z 
2026-06-09T19:58:44.3629303Z Build FAILED.

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1456473&view=results
Build error leg or test failing: browser-wasm windows checked CoreCLR_ReleaseLibraries

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "undefined symbol: SystemInteropJS_GetManagedStackTrace",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1456473
Error message validated: [undefined symbol: SystemInteropJS_GetManagedStackTrace]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 6/10/2026 11:30:22 AM UTC

Report

Build	Repository	Step Name	Console log	Pull Request
1458751	dotnet/runtime	Build product	Log	#129197
1459493	dotnet/runtime	Build product	Log	#128384
1459790	dotnet/runtime	Build product	Log	#129272
1459736	dotnet/runtime	Build product	Log	#129292
1458800	dotnet/runtime	Build product	Log	#129268
1459711	dotnet/runtime	Build product	Log	#129269
1459377	dotnet/runtime	Build product	Log	#129249
1459280	dotnet/runtime	Build product	Log	#123138
1459652	dotnet/runtime	Build product	Log	#129261
1459554	dotnet/runtime	Build product	Log	#127520
1459013	dotnet/runtime	Build product	Log	#128906
1456366	dotnet/runtime	Build product	Log	#129183
1458627	dotnet/runtime	Build product	Log	#126720
1459033	dotnet/runtime	Build product	Log	#129278
1459317	dotnet/runtime	Build product	Log	#127760
1458883	dotnet/runtime	Build product	Log	#129141
1459205	dotnet/runtime	Build product	Log
1458757	dotnet/runtime	Build product	Log	#129267
1458391	dotnet/runtime	Build product	Log	#129248
1458966	dotnet/runtime	Build product	Log	#128384
1458413	dotnet/runtime	Build product	Log	#129080
1458932	dotnet/runtime	Build product	Log	#129203
1458912	dotnet/runtime	Build product	Log	#129272
1458859	dotnet/runtime	Build product	Log	#129271
1458355	dotnet/runtime	Build product	Log	#129189
1458809	dotnet/runtime	Build product	Log	#129269
1458690	dotnet/runtime	Build product	Log	#129201
1458667	dotnet/runtime	Build product	Log	#129034
1458649	dotnet/runtime	Build product	Log	#129206
1458073	dotnet/runtime	Build product	Log	#129058
1458593	dotnet/runtime	Build product	Log	#125436
1458561	dotnet/runtime	Build product	Log	#129059
1458536	dotnet/runtime	Build product	Log	#129261
1458456	dotnet/runtime	Build product	Log	#129029
1458431	dotnet/runtime	Build product	Log
1458378	dotnet/runtime	Build product	Log	#129256
1458364	dotnet/runtime	Build product	Log	#129255
1458326	dotnet/runtime	Build product	Log	#129202
1458308	dotnet/runtime	Build product	Log	#129253
1458240	dotnet/runtime	Build product	Log	#129249
1458217	dotnet/runtime	Build product	Log	#129043
1458179	dotnet/runtime	Build product	Log	#129205
1457163	dotnet/runtime	Build product	Log	#129083
1458015	dotnet/runtime	Build product	Log	#129240
1457995	dotnet/runtime	Build product	Log	#128384
1457861	dotnet/runtime	Build product	Log	#128365
1457851	dotnet/runtime	Build product	Log	#128604
1457573	dotnet/runtime	Build product	Log	#129157
1457823	dotnet/runtime	Build product	Log	#129199
1457799	dotnet/runtime	Build product	Log	#127520
1457784	dotnet/runtime	Build product	Log	#129221
1457474	dotnet/runtime	Build product	Log	#128950
1457299	dotnet/runtime	Build product	Log
1457539	dotnet/runtime	Build product	Log	#129224
1457467	dotnet/runtime	Build product	Log	#125436
1457433	dotnet/runtime	Build product	Log	#129043
1457382	dotnet/runtime	Build product	Log	#128700
1457379	dotnet/runtime	Build product	Log	#99200
1457345	dotnet/runtime	Build product	Log	#128479
1457321	dotnet/runtime	Build product	Log	#129221
1456473	dotnet/runtime	Build product	Log	#129157

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
36	61	61

[dotnet-policy-service]

Tagging subscribers to 'arch-wasm': @lewing, @pavelsavara
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