HotReload files generated in a wrong path for MAUI Blazor projects

[abpiskunov]

Describe the bug

Looks like some path issues in the sdk that generate “staticwebassets.development.json”. In the sample MAUI blazor app staticwebassets.development.json is generated under “obj\Debug\net6.0-windows10.0.19041.0” folder however in VS project system we are using “IntermediateOutputPath” property to get the path and it returns “obj\Debug\net6.0-windows10.0.19041.0\win10-x64” in case of MAUI blazor app. Contents of that file also point to the path returned by “IntermediateOutputPath”:

{"ContentRoots":["Z:\test\maui\wwwroot\","Z:\test\maui\obj\Debug\net6.0-windows10.0.19041.0\win10-x64\scopedcss\bundle\"],"Root":{"Children":{"css":{"Children":{"app.css":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/app.css"},"Patterns":null},"bootstrap":{"Children":{"bootstrap.min.css":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/bootstrap/bootstrap.min.css"},"Patterns":null},"bootstrap.min.css.map":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/bootstrap/bootstrap.min.css.map"},"Patterns":null}},"Asset":null,"Patterns":null},"open-iconic":{"Children":{"FONT-LICENSE":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/FONT-LICENSE"},"Patterns":null},"font":{"Children":{"css":{"Children":{"open-iconic-bootstrap.min.css":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/font/css/open-iconic-bootstrap.min.css"},"Patterns":null}},"Asset":null,"Patterns":null},"fonts":{"Children":{"open-iconic.eot":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/font/fonts/open-iconic.eot"},"Patterns":null},"open-iconic.otf":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/font/fonts/open-iconic.otf"},"Patterns":null},"open-iconic.svg":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/font/fonts/open-iconic.svg"},"Patterns":null},"open-iconic.ttf":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/font/fonts/open-iconic.ttf"},"Patterns":null},"open-iconic.woff":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/font/fonts/open-iconic.woff"},"Patterns":null}},"Asset":null,"Patterns":null}},"Asset":null,"Patterns":null},"ICON-LICENSE":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/ICON-LICENSE"},"Patterns":null},"README.md":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"css/open-iconic/README.md"},"Patterns":null}},"Asset":null,"Patterns":null}},"Asset":null,"Patterns":null},"favicon.ico":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"favicon.ico"},"Patterns":null},"index.html":{"Children":null,"Asset":{"ContentRootIndex":0,"SubPath":"index.html"},"Patterns":null},"MauiBlazorApp1.styles.css":{"Children":null,"Asset":{"ContentRootIndex":1,"SubPath":"MauiBlazorApp1.styles.css"},"Patterns":null}},"Asset":null,"Patterns":[{"ContentRootIndex":0,"Pattern":"**","Depth":0}]}}

Looks like the logic generating that file needs adjustment and also should use “IntermediateOutputPath” to get the root folder for the file?.

To Reproduce

Create a MAUI Blazor app from a template and start debugging in VS. Open Index.razor.css and change some style - no reload happens and staticcss bundle file is not updated.

See this bug for more details https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1579640.

Exceptions (if any)

Further technical details

• Include the output of dotnet --info
• The IDE (VS / VS Code/ VS4Mac) you're running on, and its version

[danroth27]

@mkArtakMSFT Is this on our plate?