runtime: [.NET 6] Blazor cannot find member named xxx while debugging

Describe the bug

Hi. I tried to upgrade my project to .net 6 rc and met problem when debugging my app.

If I set breakpoint inside my method (event method for dropdown element), Blazor throws exceptions and never step to this breakpoint again until reload project.

Blazor send this: fail: Microsoft.WebAssembly.Diagnostics.DevToolsProxy[0] sending error response for id: msg-52D572BE3642D3EDFFB06D7556619E0D:::1028 -> [Result: IsOk: False, IsErr: True, Value: , Error: { "result": { "type": "object", "subtype": "error", "description": "Cannot find member named 'GetTranslationsFromServer'.", "className": "ReferenceError" } } ] fail: Microsoft.WebAssembly.Diagnostics.DevToolsProxy[0] sending error response for id: msg-52D572BE3642D3EDFFB06D7556619E0D:::1031 -> [Result: IsOk: False, IsErr: True, Value: , Error: { "result": { "type": "object", "subtype": "error", "description": "Cannot find member named 'Enum'.", "className": "ReferenceError" } } ] fail: Microsoft.WebAssembly.Diagnostics.DevToolsProxy[0] sending error response for id: msg-52D572BE3642D3EDFFB06D7556619E0D:::1040 -> [Result: IsOk: False, IsErr: True, Value: , Error: { "result": { "type": "object", "subtype": "error", "description": "Cannot find member named 'Enum'.", "className": "ReferenceError" } } ]

My method just do this:

var language = LanguageHelper.GetSupportedCultureByLanguage(
                (SupportedLanguages)Enum.Parse(typeof(SupportedLanguages), selectedLanguage));

public string GetSupportedCultureByLanguage(SupportedLanguages language)
        {
            return language switch
            {
                SupportedLanguages.English => "en-GB",
                SupportedLanguages.Polish => "pl-PL",
                SupportedLanguages.Russian => "ru-RU",
                _ => "pl-PL",
            };
        }

To Reproduce

Create any test enum, for example:

public enum TestEnum
    {
        Test,
        Test2
    }

after that try to debug this line of code Enum.Parse(typeof(TestEnum), "Test");

For new project, I see exception but debugger continues to work. For my own project, as I said, debugger never hit breakpoint again

Browser console is always empty

Further technical details

• NET 6.0.100-rc.2.21505.57
• Visual Studio 2022 Community RC2