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Docker Compose Env Variable Not Available in Container: Fix - Cloudflare 521 Error: DNS and Server Checks-Troubleshooting npm ERR! enoent Missing package.json

2026-07-28 08:14:53
Docker Compose Env Variable Not Available in Container: Fix - Cloudflare 521 Error: DNS and Server Checks-Troubleshooting npm ERR! enoent Missing package.json

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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