Unable to add @angular/material

[gopal krishna]

Hi All,

Am using angular 8 and trying to install angular material using ng add @angular/material

am getting below error :

Unable to fetch package metadata: Cannot read property 'startsWith' of null

can someone tell me what all I should be looking at,

my hello world PGM runs fine in angular 8 but unable to install material on the machine (windows)

package.json 

{

  "name": "hello-world",

  "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": "~8.2.14",

    "@angular/common": "~8.2.14",

    "@angular/compiler": "~8.2.14",

    "@angular/core": "~8.2.14",

    "@angular/forms": "~8.2.14",

    "@angular/platform-browser": "~8.2.14",

    "@angular/platform-browser-dynamic": "~8.2.14",

    "@angular/router": "~8.2.14",

    "@coreui/angular": "^2.7.2",

    "@coreui/coreui": "^2.1.16",

    "@coreui/icons": "^1.0.0",

    "rxjs": "~6.4.0",

    "tslib": "^1.10.0",

    "zone.js": "~0.9.1"

  },

  "devDependencies": {

    "@angular-devkit/build-angular": "~0.803.21",

    "@angular/cli": "~8.3.21",

    "@angular/compiler-cli": "~8.2.14",

    "@angular/language-service": "~8.2.14",

    "@types/node": "~8.9.4",

    "@types/jasmine": "~3.3.8",

    "@types/jasminewd2": "~2.0.3",

    "codelyzer": "^5.0.0",

    "jasmine-core": "~3.4.0",

    "jasmine-spec-reporter": "~4.2.1",

    "karma": "~4.1.0",

    "karma-chrome-launcher": "~2.2.0",

    "karma-coverage-istanbul-reporter": "~2.0.1",

    "karma-jasmine": "~2.0.1",

    "karma-jasmine-html-reporter": "^1.4.0",

    "protractor": "~5.4.0",

    "ts-node": "~7.0.0",

    "tslint": "~5.15.0",

    "typescript": "~3.5.3"

  }

}

[manish pamnani]

What steps are you using to add angular maetrial to your project?

The prooper way to add the angular material project to your project are:-

- Install angular material via ng add @angular/material
- Import the Angular Material COmponent that you need in app.module.ts:

  imports: [

    BrowserModule,

    NoopAnimationsModule,

    MatAutocompleteModule,

    MatButtonModule,

    MatCheckboxModule,

    MatButtonToggleModule,

    MatPseudoCheckboxModule,

    MatDatepickerModule,

    MatFormFieldModule,

    MatInputModule,

    MatRadioModule,

    MatSelectModule,

    MatSliderModule,

    MatSlideToggleModule

  ]

- Use the components in the HTML file where you want to use it

  <mat-checkbox>Check me!</mat-checkbox>

  Hope this helps.