
Fix Nginx Configuration Test Failure for Upstream Directive
When you run nginx -t and get an error involving the upstream directive...

When you run nginx -t and get an error involving the upstream directive...

You added a subdomain record in Cloudflare DNS, but it still resolves to the old IP or nothing at...

You run npm run build and get an error like Error: Missing required environmen...

If you see a Cloudflare 522 error, the connection between Cloudflare and your origin server timed...

You run git push and get ! [rejected] with non-fast-forward

If Windows Search stops returning results or behaves slowly, rebuilding the index often fixes it....