Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

The "@angular/compiler-cli" package was not properly installed.

See original GitHub issue

[X ] bug report -> please search issues before submitting


**Versions.**
@angular/cli: 1.0.0
node: 7.1.0
os: win32 x64
@angular/common: 2.1.2
@angular/compiler: 2.1.2
@angular/core: 2.1.2
@angular/forms: 2.1.2
@angular/http: 2.1.2
@angular/platform-browser: 2.1.2
@angular/platform-browser-dynamic: 2.1.2
@angular/router: 3.1.2
@angular/cli: 1.0.0


**Repro steps.**

run ng serve



**The log given by the failure.**

$ ng serve --verbose
The "@angular/compiler-cli" package was not properly installed.
Error: The "@angular/compiler-cli" package was not properly installed.
    at Object.<anonymous> (C:\Users\rball\Documents\Dev\Angular\change-detection\node_modules\@ngtools\webpack\src\index.js:16:11)
    at Module._compile (module.js:573:32)
    at Object.Module._extensions..js (module.js:582:10)
    at Module.load (module.js:490:32)
    at tryModuleLoad (module.js:449:12)
    at Function.Module._load (module.js:441:3)
    at Module.require (module.js:500:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:\Users\rball\Documents\Dev\Angular\change-detection\node_modules\@angular\cli\tasks\eject.js:10:19)
    at Module._compile (module.js:573:32)
    at Object.Module._extensions..js (module.js:582:10)
    at Module.load (module.js:490:32)
    at tryModuleLoad (module.js:449:12)
    at Function.Module._load (module.js:441:3)
    at Module.require (module.js:500:17)
    at require (internal/module.js:20:19)


**### Desired functionality.**
Launch ng serve without error


**### Mention any other details that might be useful.**
Have updated project and environment per "https://github.com/angular/angular-cli#updating-angular-cli"

See also http://stackoverflow.com/questions/42925690/angular2-cli-error-angular-compiler-cli-package-was-not-properly-installed/43021209#43021209

Package.json

{
  "name": "change-detection",
  "version": "0.0.0",
  "license": "MIT",
  "@angular/cli": {"version": "1.0.0"},
  "scripts": {
    "start": "ng serve",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update",
    "e2e": "protractor"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "~2.1.0",
    "@angular/compiler": "~2.1.0",
    "@angular/core": "~2.1.0",
    "@angular/forms": "~2.1.0",
    "@angular/http": "~2.1.0",
    "@angular/platform-browser": "~2.1.0",
    "@angular/platform-browser-dynamic": "~2.1.0",
    "@angular/router": "~3.1.0",
    "core-js": "^2.4.1",
    "rxjs": "5.0.0-beta.12",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.6.23"
  },
  "devDependencies": {
    "@angular/cli": "^1.0.0",
    "@types/jasmine": "^2.2.30",
    "@types/node": "^6.0.42",
    "codelyzer": "1.0.0-beta.1",
    "jasmine-core": "2.4.1",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "4.0.9",
    "ts-node": "1.2.1",
    "tslint": "3.13.0",
    "typescript": "~2.0.3",
    "webdriver-manager": "10.2.5"
  }
}