Web hook is not registered

Received request for unknown webhook: The requested webhook “imageReader” is not registered.
404 The requested webhook “imageReader” is not registered.

i am executing the workflow i am running n8n in local host but my

MY WEB HOOK IS IN A POST METHOD I WANT TO UPLOAD IMAGES
{
“name”: “My workflow”,
“nodes”: [
{
“parameters”: {
“options”: {}
},
“id”: “59dd95d3-832b-4e00-9f8e-9d1d7095c7a9”,
“name”: “Move Binary to JSON (Base64)”,
“type”: “n8n-nodes-base.moveBinaryData”,
“typeVersion”: 1,
“position”: [
40,
-40
]
},
{
“parameters”: {
“values”: {
“string”: [
{
“name”: “titulo”,
“value”: “={{ $json.response }}”
}
]
},
“options”: {}
},
“id”: “53195e6d-cbf7-4441-814c-6222ba785c90”,
“name”: “Set Título”,
“type”: “n8n-nodes-base.set”,
“typeVersion”: 1,
“position”: [
560,
-40
]
},
{
“parameters”: {
“options”: {}
},
“id”: “42a3ad64-4eef-497f-8ce4-417ab194e94e”,
“name”: “Responder al Backend”,
“type”: “n8n-nodes-base.respondToWebhook”,
“typeVersion”: 1,
“position”: [
760,
-40
]
},
{
“parameters”: {
“promptType”: “define”,
“text”: “Eres un agente que analiza portadas de libros. Observa la imagen que te doy y responde exclusivamente con el título del libro que aparece en la imagen. Si no puedes identificar texto, responde: "No se puede identificar el título".\n”,
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.agent”,
“typeVersion”: 2,
“position”: [
220,
-40
],
“id”: “2f0db4a0-8241-4339-a13b-50195091af34”,
“name”: “AI Agent”
},
{
“parameters”: {
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.lmChatDeepSeek”,
“typeVersion”: 1,
“position”: [
140,
220
],
“id”: “1ebf3c1b-24d3-4720-8cdd-fe06765da470”,
“name”: “DeepSeek Chat Model”,
“credentials”: {
“deepSeekApi”: {
“id”: “WoratMIlADWp8Lck”,
“name”: “DeepSeek account”
}
}
},
{
“parameters”: {},
“type”: “@n8n/n8n-nodes-langchain.memoryBufferWindow”,
“typeVersion”: 1.3,
“position”: [
320,
280
],
“id”: “2bcf703c-be2d-4dab-9052-75048aee2a76”,
“name”: “Simple Memory”
},
{
“parameters”: {
“httpMethod”: “POST”,
“path”: “imageReader”,
“responseMode”: “responseNode”,
“options”: {
“binaryPropertyName”: “cover”
}
},
“type”: “n8n-nodes-base.webhook”,
“typeVersion”: 2,
“position”: [
-260,
-40
],
“id”: “6241cf48-77d3-46e2-bba3-d1cbed3ecf6d”,
“name”: “Webhook”,
“webhookId”: “32759523-1c37-42ae-830e-14f766eb798f”
}
],
“pinData”: {},
“connections”: {
“Move Binary to JSON (Base64)”: {
“main”: [
[
{
“node”: “AI Agent”,
“type”: “main”,
“index”: 0
}
]
]
},
“AI Agent”: {
“main”: [
[
{
“node”: “Set Título”,
“type”: “main”,
“index”: 0
}
]
]
},
“Set Título”: {
“main”: [
[
{
“node”: “Responder al Backend”,
“type”: “main”,
“index”: 0
}
]
]
},
“DeepSeek Chat Model”: {
“ai_languageModel”: [
[
{
“node”: “AI Agent”,
“type”: “ai_languageModel”,
“index”: 0
}
]
]
},
“Simple Memory”: {
“ai_memory”: [
[
{
“node”: “AI Agent”,
“type”: “ai_memory”,
“index”: 0
}
]
]
},
“Webhook”: {
“main”: [
[
{
“node”: “Move Binary to JSON (Base64)”,
“type”: “main”,
“index”: 0
}
]
]
}
},
“active”: false,
“settings”: {
“executionOrder”: “v1”
},
“versionId”: “59fab8eb-13e3-4eed-ba8d-ea44b0f0296e”,
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “c3a9716ce39df906f61131d7da91cea8509659bcfddeded7fa1b3596d843fb04”
},
“id”: “Om22bisuNQfuYaBV”,
“tags”:
}

Is the error from n8n or somewhere else?

This message indicates that n8n doesn’t have an active webhook that matches the method (GET/POST), route, and type (test or production) you’re using.

There are key differences between “test” and “production” modes:
a- Test mode: The webhook is registered only when you run the workflow in test mode (“Execute Workflow”), and is deactivated after receiving a single call.

b- Production mode: It only works if the workflow is toggled ON from the UI. Use the production URL visible in the webhook node.