Problems capturing data with the path

The problem I am having is that I am working with images and it has become a bit complicated.
I convert them to binary file to edit the image and then upload it to imgbb to use the public link but the problem is that when sending that to facebook node gives me error, it’s like it does not save the data, is something that was already doing just add the functionality to edit the images and then everything has been complicated for me to upload the images to post on facebook and instagram, so far the error I am presenting with facebook I guess that solving 1 I solve the other.

In the picture I show you that I have the data set in several nodes trying to capture any of them I get the same error, undefined or ERROR path in the node but I can not understand why the error when I’m seeing the data that if they are set.
I need help to solve this problem

{
“nodes”: [
{
“parameters”: {
“httpRequestMethod”: “POST”,
“graphApiVersion”: “v20.0”,
“node”: “me”,
“edge”: “photos”,
“options”: {
“queryParameters”: {
“parameter”: [
{
“name”: “message”,
“value”: “={{ $json.message }}”
},
{
“name”: “published”,
“value”: “true”
},
{
“name”: “url”,
“value”: “=”
}
]
}
}
},
“type”: “n8n-nodes-base.facebookGraphApi”,
“typeVersion”: 1,
“position”: [
2020,
280
],
“id”: “0d29dec1-e739-47b6-a192-6a05e4c4300a”,
“name”: “Facebook Graph API”,
}
}
],
“connections”: {
“Facebook Graph API”: {
“main”: [

]
}
},
“pinData”: {}
}

Information on your n8n setup

  • n8n version: 1.72.1
  • Database : postgress with supabase
  • n8n EXECUTIONS_PROCESS setting (default: own):
  • Running n8n via (Docker compose):
  • Operating system: Ubuntu 24.04.1 LTS (GNU/Linux 6.8.0-51-generic x86_64)

It looks like your topic is missing some important information. Could you provide the following if applicable.

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:

Hi @Roder_Solutions,

it looks like your Merge nodes contains two items. One of the items probably has the data you’re looking for while the other one doesn’t and that’s what is throwing the error. It would help if you could share the full workflow.

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