Server hangs on startup showing "○ Compiling / ..." and does not proceed

[EminDemiri]

Description

Sometimes when I start the server using npm run dev, the terminal shows:

> Server listening at http://localhost:3000
 ○ Compiling / ...

but then it just stays stuck on this message and never proceeds further. When I open http://localhost:3000 in the browser, nothing happens, and the server does not respond.

Full terminal output

> npm run dev

> rl-agent@0.1.0 dev
> nodemon

[nodemon] 3.1.10
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): src/**/*.ts
[nodemon] watching extensions: js,ts
[nodemon] starting `nodemon --exec tsx src/index.ts`
[nodemon] 3.1.10
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): src/**/*.ts
[nodemon] watching extensions: js,ts
[nodemon] starting `tsx src/index.ts`
> Server listening at http://localhost:3000
 ○ Compiling / ...

package.json scripts

{
  "scripts": {
    "generate": "tsx src/generate.ts datasource",
    "generate:datasource": "tsx src/generate.ts datasource",
    "generate:ui": "tsx src/generate.ts ui",
    "dev": "nodemon",
    "start": "tsx src/index.ts"
  }
}

Dependencies

• nodemon 3.1.10
• tsx 4.7.2
• typescript 5.3.2
• @LlamaIndex packages as per package.json

Additional info

• Happens intermittently and without clear reason.
• No error messages or stack traces are printed.
• Server just hangs at compiling step indefinitely.

Could you please help identify what might cause this and how to fix it?
Thanks!

[marcusschiesser]

@EminDemiri how do you generate your example?

[EminDemiri]

I generated a new project with:

npx create-llama@latest
and selected CodeGenerator.

Everything works even after restarting the server several times.

However, if I install a new dependency I remain blocked, even if I remove it

even deleting the node_modules and package-lock.json folder and then reinstalling the dependencies I remain stuck on Compiling

[marcusschiesser]

Which dependency are you installing?