💥CANNOT run Rocket.chat in development mode (Meteor build fails/ missing modules) NOT using Docker

[NhuY-ops]

💥 Problem

I’m trying to run Rocket.Chat from source in development mode (non-Docker). I’ve followed all steps:
• Cloned the repo
• Installed Node, Yarn, Meteor
• Ran yarn install
• Attempted to run meteor --port 3000

But the app fails to run with errors such as: Unable to resolve some modules:

"@rocket.chat/apps-engine/definition/ui"
"@rocket.chat/apps-engine/client/AppClientManager"
"@rocket.chat/i18n/dist/languages"
"@rocket.chat/i18n/dist/resources/en.i18n.json"
...
🔍 Expected Behavior
• I expect Rocket.Chat to run in dev mode via meteor --port 3000 without requiring Docker.
• The build process should resolve all required modules and start up normally.

⸻

📎 Additional Notes
• Not using Docker at all — this is a native dev setup on Ubuntu 24.04.
• I’m building for development purposes, potentially customizing the Rocket.Chat core.
• I also tried tag 7.9.3 instead of develop, but same issue occurs.