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Blazor regression in 7.0.302 SDK

See original GitHub issue

Is there an existing issue for this?

I have searched the existing issues

Describe the bug

Hello,

After updating the SDK to version 7.0.302, we encountered numerous errors in our MudBlazor project. One particular example is the ambiguous call issue shown in the screenshot below. It appears that the Razor parser has become more strict, and the unnecessary @ symbol may be causing the problem. However, I’m unsure how to resolve all the errors, such as The attribute names could not be inferred from bind attribute 'bind-IsVisible' or Multiple components use the tag 'MudSwitch'. Could you provide some insight into their meaning?

While I don’t have a reproduction repository available, you can review the logs at the following link for further details: GitHub Logs

If you clone the MudBlazor repository and compile it with the 7.0.302 SDK version, you’ll have a better understanding of the overall situation.

NB! creating global.json where you set previous SDK version does solve the problem, but this is not really a solution.

It would be greatly appreciated if you could provide any information or documentation regarding the changes and how to address them. Are there any workarounds available? I’m also curious why a breaking change was introduced in the .NET 7 SDK rather than do them in .NET 8.

Thank you for your assistance.

Exceptions (if any)

Error list example

Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,79): error CS1026: ) expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,79): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(970,32): error CS1002: ; expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(970,32): error CS1513: } expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,71): error CS1026: ) expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,71): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1145,32): error CS1002: ; expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1145,32): error CS1513: } expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(38,55): error CS1026: ) expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(38,55): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1366,39): error CS1002: ; expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1366,39): error CS1513: } expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(14,57): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(14,73): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.SourceCodeGenerator/MudBlazor.SourceCodeGenerator.FastEnumDescriptionGenerator/OverflowBehaviorMudEnumExtensions.g.cs'. Path does not exist
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.SourceCodeGenerator/MudBlazor.SourceCodeGenerator.FastEnumDescriptionGenerator/OverflowBehaviorMudEnumExtensions.g.cs(25,13): warning CS0618: 'OverflowBehavior.FilpOnOpen' is obsolete: 'This value has a typo and will be removed. Please use FlipOnOpen' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/Avatar/MudAvatar.razor(7,36): warning CS0618: 'MudAvatar.Image' is obsolete: 'Add a MudImage as the ChildContent instead' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/Avatar/MudAvatar.razor(9,29): warning CS0618: 'MudAvatar.Image' is obsolete: 'Add a MudImage as the ChildContent instead' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/Avatar/MudAvatar.razor(9,42): warning CS0618: 'MudAvatar.Alt' is obsolete: 'Add a MudImage as the ChildContent instead' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/PropertyColumn.cs(28,36): warning CS8618: Non-nullable field '_compiledPropertyFunc' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/PropertyColumn.cs(29,48): warning CS8618: Non-nullable field '_compiledPropertyFuncFor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(91,150): warning CS8974: Converting method group 'ToggleAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(91,150): warning CS8974: Converting method group 'ToggleAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(95,63): warning CS8974: Converting method group 'HideAllColumnsAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(98,63): warning CS8974: Converting method group 'ShowAllColumnsAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(155,118): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(156,131): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(164,76): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,105): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,157): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(169,104): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(173,100): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(190,110): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(191,123): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(199,68): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,97): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,149): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(204,96): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(208,92): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(242,27): error CS0103: The name 'context' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(39,58): error CS0029: Cannot implicitly convert type 'Microsoft.AspNetCore.Components.ElementReference' to 'MudBlazor.MudDropContainer<MudBlazor.Column<T>>' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1351,23): error CS1501: No overload for method 'AddAttribute' takes 4 arguments [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(272,123): warning CS8974: Converting method group 'StringValueChangedAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(277,127): warning CS8974: Converting method group 'NumberValueChangedAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(285,86): warning CS8974: Converting method group 'CancelEditingItemAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(286,86): error CS1503: Argument 2: cannot convert from 'method group' to 'string?' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(297,37): warning CS8974: Converting method group 'ShowColumnsPanel' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(300,45): warning CS8974: Converting method group 'ExpandAllGroups' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(301,45): warning CS8974: Converting method group 'CollapseAllGroups' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(305,45): warning CS8974: Converting method group 'InvokeServerLoadFunc' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(402,112): warning CS8974: Converting method group 'RemoveFilterAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(405,95): warning CS8974: Converting method group 'FieldChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(425,95): warning CS8974: Converting method group 'StringValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(430,99): warning CS8974: Converting method group 'NumberValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(437,61): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(435,88): warning CS8974: Converting method group 'EnumValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(448,62): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(446,89): warning CS8974: Converting method group 'BoolValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(457,89): warning CS8974: Converting method group 'DateValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(460,89): warning CS8974: Converting method group 'TimeValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(466,95): warning CS8974: Converting method group 'StringValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(485,95): warning CS8974: Converting method group 'StringValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(490,99): warning CS8974: Converting method group 'NumberValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(497,61): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(495,88): warning CS8974: Converting method group 'EnumValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(508,62): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]

.NET Version

7.0.302

Anything else?

ambigious1

Post update 5/19/2023

Here are some solutions and workarounds for addressing certain errors and warnings:

Multiple components use the tag 'componentName' (RZ9985): See https://github.com/dotnet/razor/issues/8718#issuecomment-1551181634 for more information and avilable workaround.
The attribute names could not be inferred from bind attribute (RZ9991): See https://github.com/dotnet/razor/issues/8725#issuecomment-1554621146 for possible workaround, another options it to try latest NET 8 preview SDK instead.
Found markup element with unexpected name 'componentName'. If this is intended to be a component, add a @using directive for its namespace (RZ10012): Try this workaround https://github.com/dotnet/razor/issues/8718#issuecomment-1553914035, another options it to try latest NET 8 preview SDK instead.
The type or namespace name '' could not be found in the global namespace (are you missing an assembly reference?) (CS0400): Try to specify full qualifier https://github.com/dotnet/razor/issues/8729#issuecomment-1554202661, another options it to try latest NET 8 preview SDK instead.
Cannot implicitly convert type 'Microsoft.AspNetCore.Components.ElementReference' to '[className]' (CS0029): No workaround available except trying the latest NET 8 preview sdk instead or downgrading the SDK to previous version.

Important Note: It is worth mentioning that Microsoft recommends work around the issues by pinning the 7.0.20xx SDK instead.

Downgrading SDK

One potential solution to address the issues caused by the new SDK version is to consider reverting to the previous SDK version: https://github.com/dotnet/razor/issues/8718#issuecomment-1554379109. It’s important to note that if you are using containers, you should also ensure that the SDK version is changed accordingly. You may need to update the Dockerfile or related configuration files to specify the desired SDK version, as mentioned in this comment: https://github.com/dotnet/razor/issues/8718#issuecomment-1554556220. Additionally, don’t forget to review other areas, such as GitHub workflows, or others CI/CD.

Issue Analytics

State:
Created 4 months ago
Reactions:22
Comments:74 (16 by maintainers)

Top GitHub Comments

14reactions

danroth27commented, Jun 8, 2023

Every newcomer to Blazor who has downloaded it in the last three weeks will be scratching their heads as to why their projects don’t build, and forever put off Blazor (maybe even .Net!).

@AASPLLC That’s not quite right: While this Razor compiler issue did impact a significant number of users, it doesn’t impact every Blazor app. Only a specific coding pattern will trigger this problem. Even so, it is a severe regression that we are working as fast as possible to get fixed.

Fixing this issue requires a patch release of the .NET SDK. Whenever we ship a patch release we have to be similarly careful that the patch doesn’t introduce any new issues across all .NET workloads, so it takes time to build and validate the patch before it’s released.

This is the second consecutive big Visual Studio update which has come with breaking Blazor regressions. I’m concerned at the lack of urgency to fix them. Why is this acceptable?

@paulguz-datapa It’s not acceptable, and we’re actively working to improve our quality control processes to make sure this doesn’t happen again. It caught us by surprise that this issue made it past our Razor compiler and ASP.NET Core tests. To address this, we’re working to broaden our test suite.

It’s worth noting that one of the reasons we’ve had some issues with the Razor compiler recently is because of the increased level of investment that we’re making in the compiler to improve performance and to enhance the Razor tooling experience. It’s unfortunate that these changes introduced regressions and some of the perf gains had to temporarily be rolled back. We learned the hard way that we need more tests, but that is now getting addressed.

14reactions

jaredparcommented, May 24, 2023

Wanted to give everyone an update:

First want to apologize for the regression here. We made a substantial performance improvement to the design / build time experience in Razor that had this particular regression in it that we missed. We’re in the process of reverting that change at the moment and it will appear in the next servicing release of the 7.0.3xx .NET SDK. In the mean time advising impacted customers to pin back to the 7.0.2xx SDK. I’ll post back here when the fix is published.

This bug also impacts the .NET 8 SDK and will also be patched in it’s upcoming release.

Note: the fix is merged on our side. I verified it works for at least one of the repos listed here. Should be all set for next SDK release.

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