Describe the problem/error/question
I am following the tutorial to use Telegram Trigger with AI Agent and only having 3 nodes and trying to Activate it, it displays an error.
Even when only having the node for Telegran Trigger… it displays the same error. I suspect the problem is in the credentials.
Which is the base URL that needs to be used?
Becasue the deaul that appears seem to connect but when testing the workflow shows other error… and when use the one with https://t.me/“BOTNAME” is also not working.
What is the error message (if any)?
Workflow could not be activated: Cannot read properties of undefined (reading ‘url’)
Please share your workflow
{
“name”: “My workflow”,
“nodes”: [
{
“parameters”: {
“updates”: [
“message”
],
“additionalFields”: {}
},
“type”: “n8n-nodes-base.telegramTrigger”,
“typeVersion”: 1.1,
“position”: [
0,
0
],
“id”: “50b91189-4edb-439a-9553-60c88230d11e”,
“name”: “Telegram Trigger”,
“webhookId”: “fbe0ce65-f533-485b-9bbc-604b19f85a2a”,
“credentials”: {
“telegramApi”: {
“id”: “ohwMmiIZNwTj21Tw”,
“name”: “Telegram account”
}
}
},
{
“parameters”: {
“agent”: “conversationalAgent”,
“promptType”: “define”,
“text”: “={{ $json.message.text }}”,
“options”: {
“systemMessage”: “Assistant is a large language model trained by OpenAI.\n\nAssistant is designed to be able to assist with a wide range of tasks, from answering simple questions to providing in-depth explanations and discussions on a wide range of topics. As a language model, Assistant is able to generate human-like text based on the input it receives, allowing it to engage in natural-sounding conversations and provide responses that are coherent and relevant to the topic at hand.\n\nAssistant is constantly learning and improving, and its capabilities are constantly evolving. It is able to process and understand large amounts of text, and can use this knowledge to provide accurate and informative responses to a wide range of questions. Additionally, Assistant is able to generate its own text based on the input it receives, allowing it to engage in discussions and provide explanations and descriptions on a wide range of topics.\n\nOverall, Assistant is a powerful system that can help with a wide range of tasks and provide valuable insights and information on a wide range of topics. Whether you need help with a specific question or just want to have a conversation about a particular topic, Assistant is here to assist.”
}
},
“type”: “@n8n/n8n-nodes-langchain.agent”,
“typeVersion”: 1.7,
“position”: [
220,
0
],
“id”: “9c99ee86-46de-415c-a12d-60249bdc2920”,
“name”: “AI Agent”
},
{
“parameters”: {
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.lmChatOllama”,
“typeVersion”: 1,
“position”: [
140,
220
],
“id”: “4c7b7b2c-c6c0-41f5-9f74-bb66e990b4d0”,
“name”: “Ollama Chat Model”,
“credentials”: {
“ollamaApi”: {
“id”: “rx6aWfvwf2DmhspH”,
“name”: “Ollama account”
}
}
}
],
“pinData”: {},
“connections”: {
“Telegram Trigger”: {
“main”: [
[
{
“node”: “AI Agent”,
“type”: “main”,
“index”: 0
}
]
]
},
“Ollama Chat Model”: {
“ai_languageModel”: [
[
{
“node”: “AI Agent”,
“type”: “ai_languageModel”,
“index”: 0
}
]
]
}
},
“active”: false,
“settings”: {
“executionOrder”: “v1”
},
“versionId”: “95f118ab-762a-4f96-9c28-318b7f8d1360”,
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “bb002afd79a1fde615321eb0dab595c8f1d0f5d342b943a0161a15b5e700e5b3”
},
“id”: “vBT3mLSrTuBhD2Cu”,
“tags”:
}
Share the output returned by the last node
Information on your n8n setup
- n8n version: 1.74.3
- Database (default: SQLite):
- n8n EXECUTIONS_PROCESS setting (default: own, main):
- Running n8n via (Docker):
- Operating system: MacOS Sequoia 15.1.1