Can't start client and server together with concurrently

Question

index.js: const port = process.env.PORT || 3000;

server package.json:

    "start": "node index.js",
    "server": "nodemon index.js",
    "client": "npm start --prefix client",
    "dev": "concurrently \"npm run server\" \"npm run client\""
  },

client package.json:

"proxy": "http://localhost:5000",

I am starting it with npm run dev

Any idea where the problem might be?

error:

Error: Cannot find module '.../index.js'

Let's see your folder structure? For now I'm gonna take a guess and tell you to try `../../index.js` — Reez0, Oct 30 '19 at 15:35
folder structure is: main folder: project and inside client folder (for react) and src folder (server) where the index.js resides — oneone, Oct 30 '19 at 15:40
do you have the client or server in a subpath? if yes, you need to run "cd &&" at comand definitions — Joao Polo, Oct 30 '19 at 15:40
what do you mean by subpath? I didn't quite understand what I need to do? — oneone, Oct 30 '19 at 15:42

score 1 · Answer 1 · answered Oct 30 '19 at 15:45

1

try to map the subpath of the client project:

{
    "start": "node index.js",
    "server": "nodemon index.js",
    "client": "cd client && npm start",
    "dev": "concurrently \"npm run server\" \"npm run client\""
},

answered Oct 30 '19 at 15:45

Joao Polo

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score 0 · Answer 2 · answered Apr 11 '21 at 09:47

as I have had application and server folders, the same problems appeared. And I resolved it by giving the path --> "application": "cd ../ && npm start --prefix application"

{
  "server": "nodemon server/app.js",
  "application": "cd ../ && npm start --prefix application",
  "dev": "concurrently \"npm run server\"  \"npm run application\" "
}

Can't start client and server together with concurrently

2 Answers2