[BUG] - Cannot read properties of null (reading 'digest') while running in Node.js

[darielnoel]

Describe the Bug

When following the documentation example Node.js + AI Agents, the example fails to work starting from KaibanJS version 0.4.0. The error Cannot read properties of null (reading 'digest') is thrown.

Attached is the error screenshot for reference.

KaibanJS Team Config

Here is the link to the playground showcasing the issue: Example Playground

Steps to Reproduce

1. Clone the repository or create a new Node.js project.
2. Follow the tutorial steps as outlined in the documentation.
3. Use KaibanJS version > 0.4.0.
4. Run the example project in Node.js.
5. Observe the error mentioned above.

Current vs. Expected Behavior

• Current behavior: The application throws the error Cannot read properties of null (reading 'digest') and fails to proceed.
• Expected behavior: The example should run successfully as documented.

Environment

• Framework/Library: [Node.js]
• KaibanJS Version: [>0.4.0]
• JavaScript Runtime: [e.g., Node.js v18.20.0]

[darielnoel]

I tested this example locally using Node.js v18.20.4, and it worked fine on my setup. I'll leave this open for further testing to ensure it isn't related to specific configurations or environments. Please share any additional findings!

Here my blogTeam.js

require('dotenv').config();
const { Agent, Task, Team } = require('kaibanjs');
const { TavilySearchResults } = require('@langchain/community/tools/tavily_search');

// Define the search tool used by the Research Agent
const searchTool = new TavilySearchResults({
  maxResults: 5,
  apiKey: process.env.TAVILY_API_KEY
});

// Define the Research Agent
const researchAgent = new Agent({
  name: 'Ava',
  role: 'News Researcher',
  goal: 'Find and summarize the latest news on a given topic',
  background: 'Experienced in data analysis and information gathering',
  tools: [searchTool]
});

// Define the Writer Agent
const writerAgent = new Agent({
  name: 'Kai',
  role: 'Content Creator',
  goal: 'Create engaging blog posts based on provided information',
  background: 'Skilled in writing and content creation',
  tools: []
});

// Define Tasks
const researchTask = new Task({
  title: 'Latest news research',
  description: 'Research the latest news on the topic: {topic}',
  expectedOutput: 'A summary of the latest news and key points on the given topic',
  agent: researchAgent
});

const writingTask = new Task({
  title: 'Blog post writing',
  description: 'Write a blog post about {topic} based on the provided research',
  expectedOutput: 'An engaging blog post summarizing the latest news on the topic in Markdown format',
  agent: writerAgent
});

// Create the Team
const blogTeam = new Team({
  name: 'AI News Blogging Team',
  agents: [researchAgent, writerAgent],
  tasks: [researchTask, writingTask],
  env: { OPENAI_API_KEY: process.env.OPENAI_API_KEY }
});

module.exports = { blogTeam };