cognee-cli -ui v0.5.5: Frontend fails to compile — 3 missing npm dependencies in package.json

[acsezen]

Summary

Running cognee-cli -ui with cognee v0.5.5 (pip) results in a 500 error on every frontend request. The Next.js dev server fails to compile because three npm packages are imported in source files but not declared in cognee-frontend/package.json.

Missing dependencies

Package	Imported in
react-markdown	src/ui/elements/Notebook/MarkdownPreview.tsx
ngraph.graph	src/ui/rendering/animate.ts, src/ui/rendering/graph/createGraph.ts
ngraph.forcelayout	src/ui/rendering/animate.ts

Steps to reproduce

pip install cognee==0.5.5
cognee-cli -ui
# Backend starts on :8000 ✓
# MCP starts on :8001 ✓
# Frontend assets downloaded from GitHub release v0.5.5 ✓
# npm install runs ✓
# Next.js starts on :3000 ✓
# First page load → 500 ✗

Error output

[FRONTEND] ⨯ ./src/ui/elements/Notebook/MarkdownPreview.tsx:2:1
Module not found: Can't resolve 'react-markdown'

Environment

• cognee 0.5.5 (pip)
• Python 3.12.12
• Linux 6.17.0-19-generic (Ubuntu 24.04)
• Next.js 16.1.6 (Turbopack)

Notes

• On current main branch, react-markdown appears to be declared in cognee-frontend/package.json, suggesting the v0.5.5 release tag was cut before this fix landed.
• The cognee-mcp:main Docker image reports cognee_version=0.5.2 while the pip package is 0.5.5 (related: [Bug]: s3fs module is missing from Cognee MCP Docker image #1681).
• On Linux without Docker Desktop, host.docker.internal doesn't resolve — the MCP startup log warns about this but the CLI doesn't add --add-host host.docker.internal:host-gateway automatically.

Workaround

cd ~/.cognee/ui-cache/frontend
npm install react-markdown ngraph.graph ngraph.forcelayout

Then restart cognee-cli -ui.

[github-actions]

Hello @acsezen, thank you for your interest in our work!

If this is a bug report, please provide screenshots and minimum viable code to reproduce your issue, otherwise we can not help you.

[coderabbitai]

🔗 Related PRs

#1439 - make cognee -ui dependencies (api) part of core deps [merged]
#1523 - Feat/mcp add support for non standalone mode [merged]
#1836 - fix: install nvm and node for -ui cli command [merged]
#2124 - fix: address Dependabot security vulnerabilities [merged]

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[nightcityblade]

Hi, I'd like to work on this. I'll submit a PR shortly.

[anubhav9369]

Hi, I’d like to work on this issue.