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Unable to launch browser

See original GitHub issue

I get this error when I try to launch debug from vscode with the new support for one-step debugging for Blazor #1885

Unable to launch browser: "Could not open wss://localhost:5001/_framework/debug/ws-proxy?browser=ws%3A%2F%2F127.0.0.1%3A53267%2Fdevtools%2Fbrowser%2F53f91446-8e68-4407-95d8-d9c70558ff11": timeout after 30000ms

If I delete everything from .vscode folder I get the same error. I have the the latest Nightly JavaScript Debugger and the latest C# Extension.

Environment information

VSCode version: 1.46.0-insider C# Extension: 1.22.0 JavaScript Debugger (Nightly): v2020.5.2917

Dotnet Information .NET SDK (reflecting any global.json): Version: 5.0.100-preview.4.20258.7 Commit: 65f0fc2cad

Runtime Environment: OS Name: Mac OS X OS Version: 10.15 OS Platform: Darwin RID: osx.10.15-x64 Base Path: /usr/local/share/dotnet/sdk/5.0.100-preview.4.20258.7/

Host (useful for support): Version: 5.0.0-preview.4.20251.6 Commit: 47ec733ba7

.NET SDKs installed: 5.0.100-preview.4.20258.7 [/usr/local/share/dotnet/sdk]

.NET runtimes installed: Microsoft.AspNetCore.App 5.0.0-preview.4.20257.10 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 5.0.0-preview.4.20251.6 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:6 (3 by maintainers)

github_iconTop GitHub Comments

1reaction
ofradescommented, Jun 2, 2020

Yes, that’s it! Thanks.

0reactions
mahfuzmrcommented, Mar 30, 2022

In my case, it was one package missing :Microsoft.AspNetCore.Components.WebAssembly.DevServer Happy coding.

Read more comments on GitHub >

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