Node.JS My file in nodejs with express don´t work

[Belan]

Hello!

When I execute the code nodejs with npm start this message apear.

(node:3900) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use node --trace-warnings ... to show where the warning was created)
C:\Users\ar\ntask-api\index.js:1
import express from 'express';
^^^^^^

SyntaxError: Cannot use import statement outside a module
at internalCompileFunction (node:internal/vm:77:18)
at wrapSafe (node:internal/modules/cjs/loader:1288:20)
at Module._compile (node:internal/modules/cjs/loader:1340:27)
at loader (C:\Users\ar\ntask-api\node_modules\babel-register\lib\node.js:144:5)
at Object.require.extensions.<computed> [as .js] (C:\Users\ar\ntask-api\node_modules\babel-register\lib\node.js:154:7)
at Module.load (node:internal/modules/cjs/loader:1207:32)
at Function.Module._load (node:internal/modules/cjs/loader:1023:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:135:12)
at Object.<anonymous> (C:\Users\ar\ntask-api\node_modules\babel-cli\lib\_babel-node.js:154:22)
at Module._compile (node:internal/modules/cjs/loader:1376:14)

Node.js v21.2.0

 

[Johna]

Have you tried setting "type": "module" in the package.json?

 

[Belan]

It´s giving this wrong, but it´s better before.

node:internal/modules/esm/resolve:853
throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null);
^

Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'express' imported from C:\Users\ar\ntask-api\index.js
at packageResolve (node:internal/modules/esm/resolve:853:9)
at moduleResolve (node:internal/modules/esm/resolve:910:20)
at defaultResolve (node:internal/modules/esm/resolve:1130:11)
at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:396:12)
at ModuleLoader.resolve (node:internal/modules/esm/loader:365:25)
at ModuleLoader.getModuleJob (node:internal/modules/esm/loader:240:38)
at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:85:39)
at link (node:internal/modules/esm/module_job:84:36) {
code: 'ERR_MODULE_NOT_FOUND'
}

 

[Johna]

Can you post your code?

 

[Belan]

package.json

{
  "name": "ntask-api",
  "version": "1.0.0",
  "description": "API de gestão de tarefas",
  "main": "index.js",
  "type": "module",
  "scripts": {
    "start": "babel-node index.js"
  },
  "author": "",
  "dependencies": {
    "babel-cli": "7.0.0",
    "babel-preset-env": "^1.7.0",
    "babel-preset-es2015": "^6.5.0"
  },
  "devDependencies": {
    "@babel/preset-env": "^7.23.3"
  }
}

index.js

import express from 'express';
const PORT = 3000;
const app = express();
app.get("/", (req,res) => res.json({status: "NTASK API"}));
app.listen(PORT, () => console.log(`NTASK API - porta ${PORT}`));

 

[Johna]

Are you sure express is installed?

Try installing it with npm install express

 

[Belan]

I try to install but to apear this

npm install express
npm ERR! code ETARGET
npm ERR! notarget No matching version found for [email protected].
npm ERR! notarget In most cases you or one of your dependencies are requesting
npm ERR! notarget a package version that doesn't exist.

npm ERR! A complete log of this run can be found in: C:\Users\ar\AppData\Local\npm-cache\_logs\2023-12-05T22_03_46_324Z-debug-0.log

there is another version of express or [email protected]

 

[Johna]

Do you need those babel dependencies, or can you remove them and run npm install express?

 

[Belan]

Thank you update the version babel .all right