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Fix Gradle Build: Could Not Find or Load Main Class - How to Reset Windows Security Settings to Default-Go Modules Proxy 403 Error: Causes and Fixes

2026-06-13 13:27:46developer-tools
Fix Gradle Build: Could Not Find or Load Main Class - How to Reset Windows Security Settings to Default-Go Modules Proxy 403 Error: Causes and Fixes

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.