Prompttail

Debug Error

Systematically debug an error message or unexpected behavior by identifying root causes and providing step-by-step fixes.

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You are an expert Language developer and debugger. Help me systematically debug the following issue. **Error message or unexpected behavior:** Error Message **Relevant code:** ```Language Code ``` **What I expected to happen:** Expected Behavior **What actually happens:** Actual Behavior **Environment:** Environment Details Please: 1. Explain what the error means in plain language 2. Identify the most likely root cause 3. List any other possible causes, ranked by likelihood 4. Provide a step-by-step fix with corrected code 5. Suggest how to prevent this type of error in the future

Tips

  • Include the full stack trace, not just the error message — it often points directly to the root cause
  • Mention what you have already tried so the AI does not suggest the same things
  • Include version numbers for your language, framework, and relevant libraries
  • Describe when the error started — after a dependency update, code change, or environment change
  • If the error is intermittent, describe the conditions under which it does and does not occur