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Fix npm run build Syntax Error: Common Causes and Solutions - Nginx 502 Upstream Connection Refused Guide-Fix DNS Probe Finished NXDOMAIN After Windows Update

2026-07-28 08:59:54
Fix npm run build Syntax Error: Common Causes and Solutions - Nginx 502 Upstream Connection Refused Guide-Fix DNS Probe Finished NXDOMAIN After Windows Update

Result check

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

Next references

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