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How to Fix Ubuntu APT Lock Error by Removing /var/lib/apt/lists/lock - How to Fix Cloudflare Error 522: Origin Server Timeout-When to Use --no-cache in Docker Compose Build

2026-06-13 16:53:49
How to Fix Ubuntu APT Lock Error by Removing /var/lib/apt/lists/lock - How to Fix Cloudflare Error 522: Origin Server Timeout-When to Use --no-cache in Docker Compose Build

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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