Extension keeps failing

Environment data

• VS Code version: 1.3.0
• Extension version (available under the Extensions sidebar): 2018.12.1
• OS and version: Solus, v3.9999
• Python version (& distribution if applicable, e.g. Anaconda): 3.6.8
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): virtualenv
• Relevant/affected Python packages and their versions: All

Expected behaviour

Extension functions normally.

Actual behaviour

Extension keps failing, thus breaking autocomplete.

Steps to reproduce:

Not sure what causes it. Appears to happen randomly. I thought it may have been related to working on files stored in a symlinked folder, but that’s not the case.

Logs

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help; turn on source maps to make any tracebacks be useful by running Enable source map support for extension debugging)

  ERR Cannot read property 'map' of undefined: TypeError: Cannot read property 'map' of undefined
    at asCompletionResult (/home/hmnd/.vscode/extensions/ms-python.python-2018.12.1/node_modules/vscode-languageclient/lib/protocolConverter.js:145:1)
    at <anonymous>

[aaronpries]

After the update (Microsoft Python Language Server version 0.1.78.0) the problem is solved for me. (I had the exact same problem as hmnd)

[DonJayamanne]

Please do ensure you update your version of the extension to the latest.