.net 8 publish failed with error "An item with the same key has already been added" #89234
Description
Is there an existing issue for this?
- I have searched the existing issues
Describe the bug
Migrated our .net 7 Blazor application to .net 8 preview 6, visual studio 2023 17.7 preview 4. I can compile and run the project. But when I publish, I got the error
"C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.browser-wasm\8.0.0-preview.6.23329.7\Sdk\..\tools\mono-aot-cross.exe" --print-icall-table > "C:\omi.web\Source\Web\Core\Viewer\obj\Release\wasm\for-publish\runtime-icall-table.h"
emcc --version
Compiling native assets with emcc with -Oz. This may take a while ...
C:\Users\JJ Zhang\.nuget\packages\microsoft.net.sdk.webassembly.pack\8.0.0-preview.6.23329.7\build\Microsoft.NET.Sdk.WebAssembly.Browser.targets(379,5): Error : System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Microsoft.NET.Sdk.WebAssembly.ComputeWasmPublishAssets.GroupExistingStaticWebAssets(Dictionary`2 assemblyAssets, Dictionary`2 nativeAssets, Dictionary`2 satelliteAssemblyAssets, Dictionary`2 symbolAssets, Dictionary`2 compressedRepresentations)
at Microsoft.NET.Sdk.WebAssembly.ComputeWasmPublishAssets.Execute()
1>Build failed. Check the Output window for more details.
And here is the log file referred in the pop message:
7/19/2023 12:16:31 PM
System.AggregateException: One or more errors occurred. ---> Microsoft.WebTools.Shared.Exceptions.WebToolsException: Build failed. Check the Output window for more details.
--- End of inner exception stack trace ---
---> (Inner Exception #0) Microsoft.WebTools.Shared.Exceptions.WebToolsException: Build failed. Check the Output window for more details.<---
Microsoft.WebTools.Shared.Exceptions.WebToolsException: Build failed. Check the Output window for more details.
Expected Behavior
The publish shall succeed.
At least the error message shall tell which item has already been added.
Steps To Reproduce
Not see in a simple application, but with our full application.
At least should show some clue how to identify the issue.
Exceptions (if any)
System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Microsoft.NET.Sdk.WebAssembly.ComputeWasmPublishAssets.GroupExistingStaticWebAssets(Dictionary`2 assemblyAssets, Dictionary`2 nativeAssets, Dictionary`2 satelliteAssemblyAssets, Dictionary`2 symbolAssets, Dictionary`2 compressedRepresentations)
at Microsoft.NET.Sdk.WebAssembly.ComputeWasmPublishAssets.Execute()
.NET Version
8.0.100-preview.6.23330.14
Anything else?
No response