
Docker Compose: Fix 'Port Already in Use on Host' Error
When you run docker compose up and see an error like port is already allocated...

When you run docker compose up and see an error like port is already allocated...

When Firefox shows 'Secure Connection Failed' and a message like MOZILLA_PKIX_ERROR_<...

If you run docker network prune and later see errors like network not found

You run docker-compose up and get an error like Error starting userland proxy:...

If you see a FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of me...

When you try to open the Windows Security app and it fails to launch, often with no error message...