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Fix Docker Compose Port Already Allocated for PostgreSQL - Troubleshoot Docker Compose .env File Issues-Solving pip externally managed error on Ubuntu 23.04

2026-07-28 20:22:43

Fix Docker Compose Port Already Allocated for PostgreSQL - Troubleshoot Docker Compose .env File Issues-Solving pip externally managed error on Ubuntu 23.04

Result check

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