ERROR in Error: Metadata version mismatch for module ../node_modules/angularfire2/index.d.ts, found version 4, expected 3,

Question

ERROR in Error: Metadata version mismatch for module C:/projects/youtube-angular/firestore-app/node_modules/angularfire2/index.d.ts, found version 4, expected 3,

I have never seen this. I tried to uninstall everything and reinstall to newest versions and still getting that error. No one else running the project seems to have this issue. So i am guessing that is some local setting or install i have wrong but can't figure this one out.

package.json
{
  "name": "firestore-app",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^4.2.4",
    "@angular/common": "^4.2.4",
    "@angular/compiler": "^4.2.4",
    "@angular/core": "^4.2.4",
    "@angular/forms": "^4.2.4",
    "@angular/http": "^4.2.4",
    "@angular/platform-browser": "^4.2.4",
    "@angular/platform-browser-dynamic": "^4.2.4",
    "@angular/router": "^4.2.4",
    "angularfire2": "^5.0.0-rc.4",
    "core-js": "^2.4.1",
    "firebase": "^4.6.2",
    "font-awesome": "^4.7.0",
    "jquery": "^3.2.1",
    "materialize-css": "^0.100.2",
    "rxjs": "^5.4.2",
    "zone.js": "^0.8.14"
  },
  "devDependencies": {
    "@angular/cli": "1.4.7",
    "@angular/compiler-cli": "^4.2.4",
    "@angular/language-service": "^4.2.4",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "~3.2.0",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.7.0",
    "typescript": "~2.3.3"
  }
}

Answer 1

I faced the same problem but solved it by changing the release candidate on angularfire2 back to 3 like "angularfire2": "^5.0.0-rc.3" from "angularfire2": "^5.0.0-rc.4" in your package.json file. then delete node modules and run npm i or npm install.

Or you can unintall angularfire2 make sure you also remove it from your package.json and package.json.lock files. reinstall it and specify the release candidate like npm install [email protected] --save.

Answer 2

In my case I had to change the cli version and the angularfire2 version too

npm install @angular/cli@ version 1.2.1 --save

npm install [email protected] --save