未捕获的ReferenceError：全局未在处定义 对象../node_modules/firebase/auth.js（auth.js：255）位于 webpack_require （引导程序：81），位于Object ../ node_modules / angularfire2 / auth / auth.js（vendor.js：123513）处 webpack_require （bootstrap：81），位于Object ../ node_modules / angularfire2 / auth.js（vendor.js：123479），位于 webpack_require （引导程序：81），位于Object ../ src / app / services / login-service.ts（http-util-service.ts：7） webpack_require （引导程序：81），位于Object ../ src / app / pages / login / login.component.ts（main.js：1021）处 webpack_require （引导程序：81）
package.json
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@agm/core": "1.0.0-beta.2",
"@angular/animations": "6.0.2",
"@angular/cdk": "6.1.0",
"@angular/common": "6.0.2",
"@angular/compiler": "6.0.2",
"@angular/core": "6.0.2",
"@angular/forms": "6.0.2",
"@angular/http": "6.0.2",
"@angular/material": "6.1.0",
"@angular/platform-browser": "6.0.2",
"@angular/platform-browser-dynamic": "6.0.2",
"@angular/platform-server": "6.0.2",
"@angular/router": "6.0.2",
"ajv": "6.3.0",
"angular-calendar": "0.23.1",
"angularfire2": "^4.0.0-rc.2",
"animate.css": "3.5.2",
"arrive": "2.3.1",
"bootstrap": "4.1.0",
"bootstrap-material-design": "4.1.1",
"bootstrap-notify": "3.1.3",
"bootstrap-rtl": "3.3.4",
"bootstrap-select": "1.12.2",
"bootstrap-tagsinput": "0.7.1",
"chartist": "0.9.4",
"chartist-plugin-zoom": "0.4.0",
"core-js": "2.4.1",
"datatables": "1.10.13",
"datatables.net-bs": "1.10.16",
"datatables.net-responsive": "2.1.1",
"firebase": "^3.9.*",
"fullcalendar": "3.4.0",
"googleapis": "19.0.0",
"hammerjs": "2.0.8",
"intl": "^1.2.5",
"jasny-bootstrap": "3.1.3",
"jquery": "3.2.1",
"jquery-validation": "1.17.0",
"jqvmap": "1.5.1",
"moment": "^2.18.1",
"moment-timezone": "0.4.0",
"ng2-nouislider": "1.7.11",
"ng2-select": "2.0.0",
"ngx-chips": "1.9.2",
"nouislider": "9.2.0",
"perfect-scrollbar": "1.1.0",
"popper.js": "1.14.1",
"rxjs": "6.1.0",
"rxjs-compat": "6.1.0",
"sweetalert2": "7.22.0",
"twitter-bootstrap-wizard": "1.2.0",
"uglify-js": "^3.3.26",
"validate": "3.0.1",
"web-animations-js": "2.3.1",
"zone.js": "^0.8.26"
},
"devDependencies": {
"@angular-devkit/build-angular": "0.6.3",
"@angular/cli": "6.0.3",
"@angular/compiler-cli": "6.0.2",
"@types/bootstrap": "3.3.32",
"@types/chartist": "0.9.34",
"@types/jasmine": "2.5.38",
"@types/jquery": "1.10.31",
"@types/node": "6.0.73",
"codelyzer": "4.3.0",
"jasmine-core": "2.5.2",
"jasmine-spec-reporter": "3.2.0",
"karma": "2.0.2",
"karma-chrome-launcher": "2.0.0",
"karma-cli": "1.0.1",
"karma-coverage-istanbul-reporter": "0.2.0",
"karma-jasmine": "1.1.0",
"karma-jasmine-html-reporter": "0.2.2",
"protractor": "^5.3.2",
"ts-node": "2.0.0",
"tslint": "5.9.1",
"typescript": "~2.7.0"
}
}