wintersmith-sass | Sass plugin for wintersmith | Style Language library

After updating to Angular 6.0.1, I get the following error on ng serve:

I am using ng2-admin dashboard library, I have updated to latest version before a week, seems from last few days I am unable to run my application in IE11 but its opened and run in Chrome and Mozilla browser.

below is my files relates to this issue,polyfills.ts and package.json and error,

1. error:

DOM7011: The code on this page disabled back and forward caching. For more information, see: http://go.microsoft.com/fwlink/?LinkID=291337 my-comp-list HTML1300: Navigation occurred. my-comp-list SCRIPT5007: Unable to get property 'apply' of undefined or null reference vendor.bundle.js (23012,5)

1. package.json: `{ "name": "ng2-admin", "version": "1.0.0", "description": "Angular and Bootstrap 4 Admin Template.", "author": "Akveo ", "homepage": "http://akveo.github.io/ng2-admin/", "repository": { "type": "git", "url": "https://github.com/akveo/ng2-admin.git" }, "bugs": { "url": "https://github.com/akveo/ng2-admin/issues" }, "license": "MIT", "scripts": { "ng": "ng", "rimraf": "rimraf", "changelog": "standard-changelog", "start": "ng serve --deploy-url \"http://localhost:4200/\"", "start:hmr": "ng serve --hmr", "start:aot": "ng serve --aot", "start:prod": "ng serve --prod", "start:prod:aot": "ng serve --prod --aot", "build": "npm run clean:dist && ng build && gulp default", "build:prod": "npm run build -- --prod", "build:prod:aot": "npm run build:prod -- --aot", "build:ci": "npm run build:prod && npm run build:prod:aot", "build:demo": "npm run build:prod:aot -- --base-href \"http://akveo.com /ng2-admin/\"", "test": "ng test -sr", "test:coverage": "npm run clean:coverage && ng test -sr -cc", "lint": "ng lint", "lint:styles": "stylelint ./src/app/**/*.scss", "lint:ci": "npm run lint && npm run lint:styles", "pree2e": "webdriver-manager update --standalone false --gecko false", "e2e": "ng e2e", "clean:dist": "npm run rimraf -- dist", "clean:coverage": "npm run rimraf -- coverage", "docs:deploy": "wintersmith build -C docs && gh-pages -d docs/build", "docs:serve": "wintersmith preview -C docs" }, "private": true, "dependencies": { "@angular/animations": "4.1.0", "@angular/common": "4.1.0", "@angular/compiler": "4.1.0", "@angular/core": "4.1.0", "@angular/forms": "4.1.0", "@angular/http": "4.1.0", "@angular/platform-browser": "4.1.0", "@angular/platform-browser-dynamic": "4.1.0", "@angular/platform-server": "4.1.0", "@angular/router": "4.1.0", "@ng-bootstrap/ng-bootstrap": "1.0.0-alpha.25", "@ngx-translate/core": "6.0.1", "@ngx-translate/http-loader": "0.0.3", "amcharts3": "github:amcharts/amcharts3", "ammap3": "github:amcharts/ammap3", "angular2-datatable": "0.6.0", "animate.css": "3.5.2", "bootstrap": "4.0.0-alpha.6", "chart.js": "1.1.1", "chartist": "0.10.1", "chroma-js": "1.3.3", "ckeditor": "4.6.2", "core-js": "2.4.1", "easy-pie-chart": "2.1.7", "font-awesome": "4.7.0", "fullcalendar": "3.3.1", "google-maps": "3.2.1", "ionicons": "2.0.1", "jquery": "3.2.1", "jquery-slimscroll": "1.3.8", "leaflet": "0.7.7", "leaflet-map": "0.2.1", "lodash": "4.17.4", "ng2-ckeditor": "1.1.6", "ng2-completer": "1.3.1", "ng2-handsontable": "0.48.0", "ng2-slim-loading-bar": "4.0.0", "ng2-smart-table": "1.0.3", "ng2-tree": "2.0.0-alpha.5", "ngx-uploader": "2.2.5", "normalize.css": "6.0.0", "roboto-fontface": "0.7.0", "rxjs": "5.1.1", "zone.js": "0.8.5",

   "@ng-idle/core": "", "@ng-idle/keepalive": "", "moment": "", "ng2-toastr": "", "owasp-password-strength-test": "*" }, "devDependencies": { "@angular/cli": "1.0.1", "@angular/compiler-cli": "4.1.0", "@types/fullcalendar": "2.7.40", "@types/jasmine": "2.5.38", "@types/jquery": "2.0.41", "@types/jquery.slimscroll": "1.3.30", "@types/lodash": "4.14.61", "@types/node": "6.0.69", "codelyzer": "2.0.0", "gh-pages": "0.12.0", "jasmine-core": "2.5.2", "jasmine-spec-reporter": "3.2.0", "karma": "1.4.1", "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", "npm-run-all": "4.0.2", "protractor": "5.1.0", "rimraf": "2.6.1", "standard-changelog": "1.0.1", "stylelint": "7.10.1", "ts-node": "2.0.0", "tslint": "4.5.0", "tslint-eslint-rules": "3.5.1", "tslint-language-service": "0.9.2", "typescript": "2.3.2", "typogr": "0.6.6", "underscore": "1.8.3", "wintersmith": "2.2.5", "wintersmith-sassy": "1.1.0",

   ...

I'm trying to develop an angular application which is working with python flask API. When I'm developing the I needed to show some result which is passing from the backend. For that, I have developed an angular service.

This is the angular service

I am upgrading to Angular 6

Following the upgrade guide, I encounter the following problem:

I'm trying to deploy my project based on ng2-admin .the Build succeeded but whe i launch heroku open to run the project i got :

Application error An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details.

Here is the logs: