VSCode Terminal Not Opening After Extension Install: Fix - Fix 521 Error with Cloudflare Origin Pull Configuration-Ubuntu Python venv Not Activating: Troubleshooting Guide

Updated 2026-07-28 15:58:08browser-issues
VSCode Terminal Not Opening After Extension Install: Fix - Fix 521 Error with Cloudflare Origin Pull Configuration-Ubuntu Python venv Not Activating: Troubleshooting Guide
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.