Couldn't start dlv dap: Error: No available ports found

[Aatroy]

{ // 使用 IntelliSense 了解相关属性。 // 悬停以查看现有属性的描述。 // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387 "version": "0.2.0", "configurations": [ { "name": "main", "type": "go", "request": "launch", "mode": "debug", "cwd": "./", "program": "main.go", } ] }

launch.json like this.

when I run dlv in vscode debug , the command while execute /usr/local/go/bin/dlv dap --listen=127.0.0.1:45863 --log-dest=3 from /projects/path

but some times , the Error happened . And I run debug repeatedly multiple times will solve the problem. How can I fundamentally solve such a problem?

[h9jiang]

Hi @Aatroy, Thanks for reporting the issue.

I was not able to re-produce the issue you encountered. My experience is normally smooth.

See goDebugFactory.ts the vscode go extension need to find an available port and the port will be passed to dlv --listen flag.

Looks like the error happened even before the dlv is running. VSCode-Go uses the "get-port" (npm install get-port) to Get an available TCP port. If no port is available, it will throw an error throw new Error('No available ports found'); See source.

The version we are using is pretty old though. But I do not find a lot diff between the v5.1.1 and the v7.1.0 (latest).

Could you check if there is port available in your localhost though? I think this is not related to which code base you are trying to debug.