VS Code 1.47.0 No Longer Able to Attach Node.js Debugger

Describe the bug After upgrading to VS Code 1.47.0, I am no longer able to attach my Node.js debugger in VS Code. The following error is displayed:

Error processing attach: Error: Could not connect to debug target at http://[Redacted]:5859: Could not find any debuggable target\n\tat e (c:\\Users\\[Redacted]\\.vscode\\extensions\\ms-vscode.js-debug-nightly-2020.7.1017\\src\\extension.js:15:2438843)\n\tat processTicksAndRejections (internal/process/task_queues.js:85:5)

I also tried the ms-vscode-js-debug nightly build but the error occurred for both.

To Reproduce Steps to reproduce the behavior:

1. Windows 10
2. Upgrade VS Code to 1.47.0
3. Press F5 in VS Code
4. See error

Log File

{"tag":"runtime.launch","timestamp":1594449604718,"message":"Launch returned error","metadata":{"error":{"message":"Could not connect to debug target at http://[Redacted]:5859: Could not find any debuggable target","stack":"Error: Could not connect to debug target at http://[Redacted]:5859: Could not find any debuggable target\n\tat e (c:\\Users\\[Redacted]\\.vscode\\extensions\\ms-vscode.js-debug-nightly-2020.7.1017\\src\\extension.js:15:2438843)\n\tat processTicksAndRejections (internal/process/task_queues.js:85:5)"},"wasCancelled":true,"name":"y"},"level":2}
{"tag":"dap.send","timestamp":1594449604718,"metadata":{"connectionId":1,"message":{"seq":30,"type":"response","request_seq":2,"command":"attach","success":false,"body":{"error":{"id":9221,"format":"Error processing attach: Error: Could not connect to debug target at http://[Redacted]:5859: Could not find any debuggable target\n\tat e (c:\\Users\\[Redacted]\\.vscode\\extensions\\ms-vscode.js-debug-nightly-2020.7.1017\\src\\extension.js:15:2438843)\n\tat processTicksAndRejections (internal/process/task_queues.js:85:5)","showUser":false,"sendTelemetry":false}}}},"level":0}
{"tag":"dap.receive","timestamp":1594449604723,"metadata":{"connectionId":1,"message":{"command":"disconnect","arguments":{"restart":false},"type":"request","seq":26}},"level":0}
{"tag":"dap.send","timestamp":1594449604724,"metadata":{"connectionId":1,"message":{"seq":31,"type":"response","request_seq":26,"command":"disconnect","success":true,"body":{}}},"level":0}
{"tag":"dap.send","timestamp":1594449609724,"metadata":{"connectionId":1,"message":{"seq":32,"type":"event","event":"output","body":{"category":"telemetry","output":"js-debug/dap/operation","data":{"errors":[],"disconnect":{"operation":"disconnect","totalTime":0.8,"max":0.8,"avg":0.8,"stddev":null,"count":1,"failed":0},"!disconnect.errors":[]}}}},"level":0}

VS Code Version: 1.47.0

Additional context

Here is the launch.json configuration that is used:

{
            "type": "node",
            "request": "attach",
            "name": "Worker",
            "address": "[Redacted]",
            "port": 5859,
            "restart": true,
            "localRoot": "${workspaceRoot}",
            "remoteRoot": "[Redacted]",
            "protocol": "inspector",
            "skipFiles": [
                "<node_internals>/**/*.js"
            ]
}

I am able to attach the debugger after setting debug.javascript.usePreview to false in settings.json.

[connor4312]

Please open a new issue using the issue template.

[massimeddu]

This should be fixed in the new nightly release which I’ve manually triggered.

I can confirm that the nightly extension fixes the issue. Thank you for the quick fix!