Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Call stack and variables panes are blank when paused on breakpoints

See original GitHub issue

VS Code version: both code-insiders_1.28.0-1538437803_amd64.deb and code_1.27.2-1536736588_amd64.deb
Extension version (available under the Extensions sidebar): 2018.8.0
OS and version: Ubuntu (4.15.0-34-generic)
Python version (& distribution if applicable, e.g. Anaconda): apt install python (Python 2.7.15rc1)
Type of virtual environment used (N/A | venv | virtualenv | conda | …): N/A
Relevant/affected Python packages and their versions: none, clean install

Actual behavior

the debugger view tells you PAUSED ON BREAKPOINT but there are no details in the CALL STACK or VARIABLES panes.

Expected behavior

The debugger is pretty much useless without showing any variables or the call stack. I expect to see variables and call stack

Steps to reproduce:

`dpkg -P code; apt purge code vscode; snap uninstall vscode; mv ~/.vscode/ ~/BACKUP/.vscode; mv ~/.config/Code/ ~/BACKUP/.config/code`

`dpkg -i code-insiders_1.28.0-1538437803_amd64.deb`

run `code` in terminal

install microsoft python plugin

create a file with a single variable assignment and on second line a print

break point line 2

press F5 which runs for you `env "PYTHONIOENCODING=UTF-8" "PYTHONUNBUFFERED=1" "PYTHONPATH=/home/chris/.vscode/extensions/ms-python.python-2018.8.0/pythonFiles/experimental/ptvsd" /home/chris/workspace/bin/python -m ptvsd --host localhost --port 43707 /home/chris/workspace/test.py`

observe the debugger view tells you PAUSED ON BREAKPOINT but there are no details in the CALL STACK or VARIABLES panes.

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

Starting Jedi Python language engine.
##########Linting Output - pylint##########

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

##########Linting Output - pylint##########

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

##########Linting Output - pylint##########

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help)

 INFO no standard startup: panel is active
workbench.main.js:sourcemap:3263 [ms-python.python]Cannot read property 'replace' of undefined
e.$onExtensionRuntimeError @ workbench.main.js:sourcemap:3263
workbench.main.js:sourcemap:3263 TypeError: Cannot read property 'replace' of undefined
	at parseVersion (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/common/platform/osinfo.js:155:15)
	at getos (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/common/platform/osinfo.js:81:19)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/index.js:96:16
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:421:16
	at iteratorCallback (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:998:13)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:906:16
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/index.js:91:18
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:3060:16
	at eachOfArrayLike (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:1003:9)
	at eachOf (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:1051:5)
	at Object.eachLimit (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/node_modules/async/dist/async.js:3122:5)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/getos/index.js:81:13
	at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:511:3)
e.$onExtensionRuntimeError @ workbench.main.js:sourcemap:3263
workbench.main.js:sourcemap:276 [Extension Host] Python Extension: Error in debugger Banner Error: Missing required @injectable annotation in: Random.
	at getTargets (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/planning/reflection_utils.js:20:15)
	at Object.getDependencies (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/planning/reflection_utils.js:11:19)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/planning/planner.js:106:51
	at Array.forEach (<anonymous>)
	at _createSubRequests (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/planning/planner.js:94:20)
	at Object.plan (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/planning/planner.js:129:9)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/container/container.js:316:37
	at Container._get (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/container/container.js:309:44)
	at Container.get (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/node_modules/inversify/lib/container/container.js:228:21)
	at ServiceContainer.get (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/ioc/container.js:28:89)
	at DebuggerBanner.<anonymous> (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:163:55)
	at Generator.next (<anonymous>)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:18:71
	at new Promise (<anonymous>)
	at __awaiter (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:14:12)
	at DebuggerBanner.getDebuggerLaunchThresholdCounter (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:158:16)
	at DebuggerBanner.<anonymous> (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:135:22)
	at Generator.next (<anonymous>)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:18:71
	at new Promise (<anonymous>)
	at __awaiter (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:14:12)
	at DebuggerBanner.passedThreshold (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:133:16)
	at DebuggerBanner.<anonymous> (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:72:30)
	at Generator.next (<anonymous>)
	at /home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:18:71
	at new Promise (<anonymous>)
	at __awaiter (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:14:12)
	at DebuggerBanner.shouldShow (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:68:16)
	at DebuggerBanner.<anonymous> (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:188:37)
	at Generator.next (<anonymous>)
	at fulfilled (/home/chris/.vscode/extensions/ms-python.python-2018.8.0/out/client/debugger/banner.js:15:58)
	at <anonymous>