Debug adapter process has terminated unexpectedly

From @zeus on January 7, 2017 17:23

Environment data

VS Code version: 1.8.1 Python Extension version: 0.5.5
Python Version: 2.7.13 OS and version: Windows 10 Your launch.json (if dealing with debugger issues):

        {
        
            "name": "Attach (Remote Debug)",
            "type": "python",
            "request": "attach",
            "localRoot": "${workspaceRoot}",
            "remoteRoot": "${workspaceRoot}",
            "port": 4000,
            "secret": "my_secret",
            "host":"localhost"
        }

Your settings.json:

Logs

Output from Python output panel

None

Output from Console window (Help->Developer Tools menu)

index.js:22 [uncaught exception]: Error: TypeError: Cannot read property 'Threads' of undefined
    at PythonDebugger.threadsRequest (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\out\client\debugger\Main.js:321:27)
    at PythonDebugger.DebugSession.dispatchRequest (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\node_modules\vscode-debugadapter\lib\debugSession.js:421:22)
    at PythonDebugger.ProtocolServer._handleData (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\node_modules\vscode-debugadapter\lib\protocol.js:104:38)
    at Socket.<anonymous> (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\node_modules\vscode-debugadapter\lib\protocol.js:24:60)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:176:18)
    at Socket.Readable.push (_stream_readable.js:134:10)
    at Pipe.onread (net.js:543:20)onError @ index.js:22(anonymous function) @ index.js:91emitOne @ events.js:96emit @ events.js:188window.onerror @ C:\Program Files (x86)\Microsoft VS Code\resources\electron.asar\renderer\init.js:120i.globals.onerror @ errorTelemetry.ts:64
index.js:25 Error: TypeError: Cannot read property 'Threads' of undefined
    at PythonDebugger.threadsRequest (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\out\client\debugger\Main.js:321:27)
    at PythonDebugger.DebugSession.dispatchRequest (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\node_modules\vscode-debugadapter\lib\debugSession.js:421:22)
    at PythonDebugger.ProtocolServer._handleData (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\node_modules\vscode-debugadapter\lib\protocol.js:104:38)
    at Socket.<anonymous> (C:\Users\zeus\.vscode\extensions\donjayamanne.python-0.5.5\node_modules\vscode-debugadapter\lib\protocol.js:24:60)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:176:18)
    at Socket.Readable.push (_stream_readable.js:134:10)
    at Pipe.onread (net.js:543:20)
    at file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:90:21136
    at Object.v [as _notify] (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:32:13263)
    at Object.enter (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:32:16768)
    at _run (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:32:18089)
    at _error (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:32:17606)
    at file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:85:1178
    at _.e.dispatch (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:85:2523)
    at _.e.handleData (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:85:2035)
    at Socket.<anonymous> (file:///C:/Program Files (x86)/Microsoft VS Code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:85:1038)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)

Actual behavior

Debug adapter process has terminated unexpectedly

Expected behavior

Attach to simple process

Steps to reproduce:

• Simple program:

#!/usr/bin/env python
import ptvsd
ptvsd.enable_attach("my_secret", address=('0.0.0.0', 4000))
ptvsd.wait_for_attach()
t = 1+1

• Run
• Run Debug, failed

Other

Connected from MS VS 2015 successfully. Can’t connect from VSC with ‘attach’ option. ‘Launch’ works fine.

Copied from original issue: DonJayamanne/pythonVSCode#626

[DonJayamanne]

It should be fixed, please test the latest development version of the extension. Instructions can be found here https://github.com/Microsoft/vscode-python/blob/master/CONTRIBUTING.md#development-build

If not, please feel free to re-open or comment on this issue and I’ll re-open it.

[bejota]

I’ve had no luck getting the python debugger to work at all. Details are here https://stackoverflow.com/questions/52826127/visual-studio-code-python-debugger-seg-fault .