Node.js Error: Cannot find module express

Question

I wrote my first node.js app, but it can\'t find express library:

C:\\ChatServer\\Server>node server.js

module.js:340
    throw err;
          ^
Error: C         


        

Answer 1

On Ubuntu-based OS you can try

sudo apt-get install node-express

its working for me on Mint

Answer 2

installing express globally will not work on your local project so you need to install it locally for use .

npm install express

Hope this will work

Thank you

Answer 3

I had this error in vscode, although the modules where installed. I am using typescript and express. In the server.ts files all the imports had red squiggly underlines. It turns out I had a faulty tsconfig.json file.

{
    "compileOnSave": false,
    "compilerOptions": {
        "module": "commonjs", // Previously this value was `es6`
        "target": "es6",
        "allowSyntheticDefaultImports": true,
        "baseUrl": "public",
        "sourceMap": true,
        "outDir": "dist",
        "jsx": "react",
        "strict": true,
        "preserveConstEnums": true,
        "removeComments": true,
        "noImplicitAny": true,
        "allowJs": true
    },
    "exclude": [
        "node_modules",
        "build"
    ]
}