Errors: Data path “.builders['app-shell']” should have required property 'class'

Question

I am getting this error while running my application. Here are the details of my application.

Angular CLI: 7.3.3 
Node: 10.15.1 
Angular: 7.2.7 
@angular-de         


        

Answer 1

You have incompatibly dependencies i solved this problem by change the package.json form another project angular and then after change to this packag.json, you change only the dependencies versions you have.

after the change write:

-npm link

-npm serve -o

then it's work :)

   {
   "name": "angular-jwt-auth",
   "version": "0.0.0",
   "scripts": {
   "ng": "ng",
   "start": "ng serve",
   "build": "ng build",
   "test": "ng test",
   "lint": "ng lint",
   "e2e": "ng e2e"
   },
   "private": true,
   "dependencies": {
   "@angular/animations": "^7.1.4",
   "@angular/cdk": "^7.3.1",
   "@angular/common": "~7.1.0",
   "@angular/compiler": "~7.1.0",
   "@angular/core": "~7.1.0",
   "@angular/forms": "~7.1.0",
   "@angular/http": "^6.1.10",
   "@angular/material": "^7.3.1",
   "@angular/platform-browser": "~7.1.0",
   "@angular/platform-browser-dynamic": "~7.1.0",
   "@angular/router": "~7.1.0",
   "@ng-bootstrap/ng-bootstrap": "^4.2.0",
   "@types/jquery": "^3.3.29",
   "angular-6-datatable": "^0.8.0",
   "bootstrap": "^4.3.1",
   "chart.js": "^2.8.0",
   "core-js": "^2.5.4",
   "jquery": "^3.4.1",
   "rxjs": "~6.3.3",
   "zone.js": "~0.8.26"
    },
   "devDependencies": {
   "@angular-devkit/build-angular": "~0.11.0",
   "@angular/cli": "~7.1.0",
   "@angular/compiler-cli": "~7.1.0",
   "@angular/language-service": "~7.1.0",
   "@types/chart.js": "^2.7.53",
   "@types/jasmine": "^2.8.16",
   "@types/jasminewd2": "^2.0.6",
   "@types/node": "~8.9.4",
   "codelyzer": "~4.2.1",
   "jasmine-core": "~2.99.1",
   "jasmine-spec-reporter": "~4.2.1",
   "karma": "~3.1.1",
   "karma-chrome-launcher": "~2.2.0",
   "karma-coverage-istanbul-reporter": "~2.0.1",
   "karma-jasmine": "~1.1.2",
   "karma-jasmine-html-reporter": "^0.2.2",
   "protractor": "~5.4.0",
   "ts-node": "~7.0.0",
   "tslint": "~5.11.0",
   "typescript": "~3.1.6"
   }