Breakpoint set but not yet bound

[StefanLundmark]

I have followed the instructions from here to debug Blazor WebAssembly applications: https://docs.microsoft.com/en-us/aspnet/core/blazor/debug?view=aspnetcore-3.1&tabs=visual-studio

The only thing I get when placing breakpoints is that the "Breakpoint set but not yet bound". Some information:

• I tried both creating the project from the template dialogs in Visual Studio 2019, Version 16.5.4 - and from the command line by creating a new blazorwasm project.
• I tried with both IIS Express and BlazorApp as debug targets.
• WebAssembly Nuget versions are v3.2.1
• Target framework appears to be .NET Standard 2.1
• "Enable JavaScript debugging for ASP.NET (Chrome, Edge and IE)" is enabled.
• In the template dialogs the .NET Core version is mentioned as 3.1.8. Browser is Chrome.
• Edge refuses to work, says it "Failed to launch debug adapter" with "ECONNREFUSED". Could it be related to my issues in Chrome?
• Breakpoint is at "currentCount++" in Counter.razor from the example project.
• Tried on two different computers, same issue and same parameters above.

And finally, the output from dotnet --info is:

.NET Core SDK (reflecting any global.json):
 Version:   3.1.401
 Commit:    5b6f5e5005

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.17763
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\3.1.401\

Host (useful for support):
  Version: 3.1.7
  Commit:  fcfdef8d6b

.NET Core SDKs installed:
  1.1.13 [C:\Program Files\dotnet\sdk]
  2.1.202 [C:\Program Files\dotnet\sdk]
  2.1.505 [C:\Program Files\dotnet\sdk]
  3.1.100 [C:\Program Files\dotnet\sdk]
  3.1.201 [C:\Program Files\dotnet\sdk]
  3.1.401 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.1.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.1.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 1.0.15 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 1.1.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.21 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.7 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

[StefanLundmark]

Not sure if this is helpful as I can't tell which of the two actions made a difference but I:

• Installed the latest Windows updates, including one of the major ones.
• Repaired Visual Studio 2019.

And now the breakpoints get triggered! Yay!

[mkArtakMSFT]

Thanks for contacting us and glad that you got this working.