ASP.NET Core Issue 58321

This repository is a repro for dotnet/aspnetcore#58321.

Pre-requisites

• .NET 8 SDK
• .NET 9 SDK

Explanation

After changing from the .NET 8 SDK to the .NET 9 SDK, publishing an application using --no-build results in an incorrectly named file being placed in the wwwroot folder. For example, jsmodules.publish.manifest.json instead of FluentUIApp.modules.json. Same content, but wrong file name. This causes the content to break at runtime.

To re-create the repro source

To setup the source code to reproduce this issue yourself:

mkdir aspnet-58321-repro
cd aspnet-58321-repro
dotnet new globaljson # Expected to be configured with version 9.0.100
dotnet new install Microsoft.FluentUI.AspNetCore.Templates
dotnet new fluentblazor -o src\FluentUIApp

The code above, at the time of writing, produces:

• A global.json file configured with "version": "9.0.100".
• A .NET 8 Blazor project configured for Fluent UI.

Repro steps

Scripted steps

Run .\repro.ps1 using PowerShell and you should see the following at the end of the output:

Testing for expected file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/FluentUIApp.modules.json):
Expected file doesn't exist. This is the bug!
Testing for bug file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/jsmodules.publish.manifest.json):
The bug file exists. This is the bug!

Now, update the global.json file with a .NET 8 SDK version:

{
  "sdk": {
    "version": "8.0.403"
  }
}

Run .\repro.ps1 using PowerShell again and you should se the following at the end of the output:

Testing for expected file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/FluentUIApp.modules.json):
Behaving as expected!
Testing for bug file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/jsmodules.publish.manifest.json):
The bug file doesn't exist. This is the expected behavior.

Manual steps

To run the steps manually yourself, run the following:

dotnet build -c Release
dotnet publish --no-build
# Now check for the existence of:
#  Expected: ./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/FluentUIApp.modules.json
#  Actual  : ./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/jsmodules.publish.manifest.json

Results

Actual

The ./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/smodules.publish.manifest.json file exists instead.

> .\repro.ps1
Cleaning previous build output...
Building the app...
Restore complete (0.5s)
You are using a preview version of .NET. See: https://aka.ms/dotnet-support-policy
  FluentUIApp succeeded (0.9s) → src\FluentUIApp\bin\Release\net8.0\FluentUIApp.dll

Build succeeded in 1.6s
Publishing the app with --no-build...
  FluentUIApp succeeded (0.3s) → src\FluentUIApp\bin\Release\net8.0\publish\

Build succeeded in 0.4s
Testing for expected file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/FluentUIApp.modules.json):
Expected file doesn't exist. This is the bug!
Testing for bug file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/jsmodules.publish.manifest.json):
The bug file exists. This is the bug!

Expected

The ./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/FluentUIApp.modules.json file should exist.

> .\repro.ps1
Cleaning previous build output...
Building the app...
Restore complete (0.5s)
You are using a preview version of .NET. See: https://aka.ms/dotnet-support-policy
  FluentUIApp succeeded (0.9s) → src\FluentUIApp\bin\Release\net8.0\FluentUIApp.dll

Build succeeded in 1.6s
Publishing the app with --no-build...
  FluentUIApp succeeded (0.3s) → src\FluentUIApp\bin\Release\net8.0\publish\

Build succeeded in 0.4s
Testing for expected file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/FluentUIApp.modules.json):
Behaving as expected!
Testing for bug file (./src/FluentUIApp/bin/Release/net8.0/publish/wwwroot/jsmodules.publish.manifest.json):
The bug file doesn't exist. This is the expected behavior.