mvp-factory-openhands/TROUBLESHOOTING_NODE7.md

🔍 Node 7 "Format Build Response" - retry_count Error

🎯 Error Message

Problem in node 'Format Build Response'
Cannot read properties of undefined (reading 'retry_count')
[line 12]

🔍 Root Cause

Node 7 tries to access:

retry_count: $workflow.staticData.retry_count || 0

The problem:

• $workflow.staticData might be undefined on first execution
• Even if it exists, retry_count property might not be set yet
• Node 7 runs BEFORE Node 8 "Increment Retry Counter" on first attempt

🛠️ Fix: Update Node 7 Code

In n8n editor:

1. Open Node 7 "Format Build Response"
2. Replace the code with this FIXED version:

// FIXED: Properly handle undefined staticData
const repoInfo = $('Extract Repo Info').item.json;
const buildStatus = $('Check Build Status').item.json;

// Safely get retry count from staticData
const retryCount = ($workflow.staticData && $workflow.staticData.retry_count) || 0;

const result = {
  status: buildStatus.status,
  repo: repoInfo.repo_full_name,
  branch: repoInfo.branch,
  commit: repoInfo.commit_sha ? repoInfo.commit_sha.substring(0, 8) : 'N/A',
  message: buildStatus.message,
  timestamp: new Date().toISOString(),
  retry_count: retryCount
};

// Add emoji for status
if (result.status === 'SUCCESS') {
  result.emoji = '✅';
} else if (result.status === 'FAILED') {
  result.emoji = '❌';
} else {
  result.emoji = '⚠️';
}

return result;

Key Changes:

1. ✅ Safe access: ($workflow.staticData && $workflow.staticData.retry_count) || 0
2. ✅ Default values: Handle undefined properties gracefully
3. ✅ Commit hash: Add null check before .substring()

🎯 What Will Happen After Fix

First execution (retry_count = 0):

{
  "status": "SUCCESS",
  "emoji": "✅",
  "repo": "gitadmin/test-repo",
  "branch": "main",
  "commit": "abc123",
  "message": "Build completed successfully",
  "timestamp": "2025-12-01T18:45:00.000Z",
  "retry_count": 0
}

After retries (retry_count = 1, 2, or 3):

{
  "status": "SUCCESS",
  "emoji": "✅",
  "retry_count": 1,
  ...
}

🔄 Alternative: Initialize staticData in Node 1

You can also add this to Node 1 "Extract Repo Info" to ensure staticData is initialized:

// Add at the start of Node 1 code:
if (!$workflow.staticData) {
  $workflow.staticData = {};
}
if ($workflow.staticData.retry_count === undefined) {
  $workflow.staticData.retry_count = 0;
}

// Then continue with original code...

✅ Testing

After applying the fix:

1. Save workflow
2. Test with cURL:

curl -X POST https://n8n.oky.sh/webhook/openhands-enhanced \
  -H "Content-Type: application/json" \
  -d '{"repository": {"full_name": "test"}, "commits": [{"message": "Test"}]}'

3. Check n8n Executions tab - should complete without errors!
4. See JSON response with ✅ emoji in "Format Build Response" node