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Cannot find module '@nestjs/core' or its corresponding type declarations

Couple of weeks ago I installed NestJS globally on my computer. Now I'm coming back to that, to start learning.

So I created new project with comand:

nest new ./

It generated all the files, but when I try to run this application with command:

nest start

I expected this template project to start but there are errors with importing paths? Is this due to version of my installed Nest or something?

Errors on the screen: enter image description here

Version of my Nest: 7.5.6

Package.json:

  "dependencies": {
    "@nestjs/common": "^7.6.13",
    "@nestjs/core": "^7.6.13",
    "@nestjs/platform-express": "^7.6.13",
    "reflect-metadata": "^0.1.13",
    "rimraf": "^3.0.2",
    "rxjs": "^6.6.6"
  },
  "devDependencies": {
    "@nestjs/cli": "^7.5.6",
    "@nestjs/schematics": "^7.2.7",
    "@nestjs/testing": "^7.6.13",
    "@types/express": "^4.17.11",
    "@types/jest": "^26.0.20",
    "@types/node": "^14.14.31",
    "@types/supertest": "^2.0.10",
    "@typescript-eslint/eslint-plugin": "^4.15.2",
    "@typescript-eslint/parser": "^4.15.2",
    "eslint": "^7.20.0",
    "eslint-config-prettier": "^8.1.0",
    "eslint-plugin-prettier": "^3.3.1",
    "jest": "^26.6.3",
    "prettier": "^2.2.1",
    "supertest": "^6.1.3",
    "ts-jest": "^26.5.2",
    "ts-loader": "^8.0.17",
    "ts-node": "^9.1.1",
    "tsconfig-paths": "^3.9.0",
    "typescript": "^4.1.5"
  },
Solution

  • I had the same issue. The following two commands fixed it:

    npm install @nestjs/common
npm install @nestjs/core

    These commands make sure you are using the lastest versions of those packages.

    Sometimes you may also get error: Cannot find module '@nestjs/mapped-types' or its corresponding type declarations.

    In that case, do:

    npm install @nestjs/mapped-types