error: Error: Please install chromadb as a dependency with, e.g. `npm install -S chromadb`

[YIN-Renlong]

First of all, I appreciate your dedication to this project, but there is a serious problem that needs to be solved in macOS. The installation process is smooth, but when entering http://localhost:3000/ in browser, no matter what questions are entered, after clicking the Enter key, this error message will appear at the bottom of the interface:

error: Error: Please install chromadb as a dependency with, e.g. npm install -S chromadb

Here are the full error codes in Terminal:

error: Error: Please install chromadb as a dependency with, e.g. npm install -S chromadb
at Chroma.imports (file:///Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/langchain/dist/vectorstores/chroma.js:159:19) at process.processTicksAndRejections (node:internal/process/task_queues:95:5) at async Chroma.ensureCollection (file:///Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/langchain/dist/vectorstores/chroma.js:61:42) at async Chroma.fromExistingCollection (file:///Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/langchain/dist/vectorstores/chroma.js:150:9) at async handler (webpack-internal:///(api)/./pages/api/chat.ts:47:53) at async Object.apiResolver (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/api-utils/node.js:372:9) at async DevServer.runApi (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/next-server.js:513:9) at async Object.fn (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/next-server.js:815:35) at async Router.execute (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/router.js:243:32) at async DevServer.runImpl (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/base-server.js:432:29) at async DevServer.run (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/dev/next-dev-server.js:814:20) at async DevServer.handleRequestImpl (/Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/base-server.js:375:20) at async /Users/macosUser1/gpt4-pdf-chatbot-langchain-chromadb/node_modules/next/dist/server/base-server.js:157:99

The installed node version:
node -v v18.17.1

The same error appears in several different macs, including Intel and Apple silicon chips.

I tried to install it according to the prompts, but to no avail. Any solution? Thanks

[tianyilt]

The same problem,
happened in chat.ts

const vectorStore = await Chroma.fromExistingCollection(
      new OpenAIEmbeddings({}),
      {
        collectionName: process.env.COLLECTION_NAME,
        url: 'xxxxxxxxx',
      },
    );

[vasudharao08]

Did you manage to resolve this? @YIN-Renlong @tianyilt

[vasudharao08]

NVM: Rolling back to 1.5.6 fixes this

[vasudharao08]

@YIN-Renlong I started getting this error now : "Required parameter collectionId was null or undefined when calling getNearestNeighbors". Any suggestions?

[YIN-Renlong]

@YIN-Renlong I started getting this error now : "Required parameter collectionId was null or undefined when calling getNearestNeighbors". Any suggestions?

@vasudharao08 Hello, I apologize for not being able to help more, but the difficulty of configuring chromadb locally has caused me to completely forsake this version. Please refer to this version https://github.com/mayooear/gpt4-pdf-chatbot-langchain

[vasudharao08]

Actually I just resolved this, looks like it was the ChromaDB version error. Upgrading it solves the problem!

[george-sagaiq]

If it helps - here is how I worked around this problem: langchain-ai/langchainjs#2637 (comment)