angular – 没有导出成员’MdCardModule’和’MdTooltipModule’

ERROR in C:/761/search-
bar/workload_management_app/Client/src/app/app.module.ts (8,9):
Module ‘”C:/761/search-
bar/workload_management_app/Client/node_modules/@angular/materia
l/material”‘ has no exported member ‘MdCardModule’.

ERROR in C:/761/search-
bar/workload_management_app/Client/src/app/app.module.ts (8,23):
Module ‘”C:/761/search-
bar/workload_management_app/Client/node_modules/@angular/material/material”‘
has no exported member ‘MdTooltipModule’.

ERROR in MdCardModule is not an NgModule

ERROR in C:/761/search-
bar/workload_management_app/Client/src/app/app.module.ts (8,9): Module
‘”C:/761/search-
bar/workload_management_app/Client/node_modules/@angular/material/materia
l”‘ has no exported member ‘MdCardModule’.

ERROR in C:/761/search-
bar/workload_management_app/Client/src/app/app.module.ts (8,23): Module
‘”C:/761/search-
bar/workload_management_app/Client/node_modules/@angular/material/materi
al”‘ has no exported member ‘MdTooltipModule’.

的package.json

"version": "0.0.0",...
  "private": true,"dependencies": {
    "@angular/animations": "^4.2.4","@angular/cdk": "^2.0.0-beta.11","@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/material": "github:angular/material2-builds","@angular/platform-browser": "^4.2.4","@angular/platform-browser-dynamic": "^4.2.4","@angular/router": "^4.2.4","@ng-bootstrap/ng-bootstrap": "^1.0.0-beta.2","angular-numeric-directive": "^1.0.0","angular2-busy": "^2.0.4","bootstrap": "^4.0.0-beta","core-js": "^2.4.1","jquery": "^3.2.1","ng2-drag-drop": "^2.6.0","ng2-dragula": "^1.5.0","ngx-bootstrap": "^1.9.3","popper.js": "^1.12.5","rxjs": "^5.4.2","zone.js": "^0.8.14"

我怎么能解决这个问题,任何人都可以帮助我吗？

PS: I tried to run npm install --save @angular/material before,but it didn’t work.