Karma chrome launcher is blank

Hi,

As soon as I run npm run test / ng test , My test cases run , but the error's appear in the terminal itself and not in karma chrome.

karma.conf.js


// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html

module.exports = function (config) {
  config.set({
    basePath: '',
    frameworks: ['jasmine', '@angular-devkit/build-angular'],
    plugins: [
      require('karma-jasmine'),
      require('karma-chrome-launcher'),
      require('karma-jasmine-html-reporter'),
      require('karma-coverage-istanbul-reporter'),
      require('@angular-devkit/build-angular/plugins/karma'),
      require('karma-phantomjs-launcher'),  //new
      require( 'karma-html-reporter'),
      require('karma-teamcity-reporter')

    ],
    client: {
      clearContext: false // leave Jasmine Spec Runner output visible in browser
    },
    coverageIstanbulReporter: {
      dir: require('path').join(__dirname, '../coverage'),
      reports: ['html', 'lcovonly'],
      fixWebpackSourcePaths: true
    },
    reporters: ['html','progress', 'kjhtml'],
    hostname:'192.168.5.140',
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['Chrome'],
    singleRun: false
  });
};

package.json -


 "dependencies": {
    "@agm/core": "^1.0.0-beta.7",
    "@angular/animations": "^7.0.1",
    "@angular/common": "^7.0.1",
    "@angular/compiler": "^7.0.1",
    "@angular/core": "^7.0.1",
    "@angular/forms": "^7.0.1",
    "@angular/http": "^7.0.1",
    "@angular/platform-browser": "^7.0.1",
    "@angular/platform-browser-dynamic": "^7.0.1",
    "@angular/router": "^7.0.1",
    "@jaspero/ng-confirmations": "^0.4.7",
    "@jaspero/ng2-confirmations": "^0.3.3",
    "@ng-bootstrap/ng-bootstrap": "^3.3.1",
    "@swimlane/ngx-charts": "^7.0.1",
    "@swimlane/ngx-datatable": "^13.1.0",
    "@types/crypto-js": "^3.1.43",
    "angular-calendar": "^0.25.2",
    "angular-datatables": "^6.0.1",
    "bootstrap": "^4.3.1",
    "c3": "^0.4.23",
    "chart.js": "^2.8.0",
    "chartist": "^0.11.3",
    "core-js": "^2.6.9",
    "crypto-js": "^3.1.9-1",
    "d3": "^4.8.0",
    "datatables.net": "^1.10.19",
    "datatables.net-dt": "^1.10.19",
    "jasmine": "^3.4.0",
    "jquery": "^3.4.1",
    "jspdf": "^1.5.3",
    "jspdf-autotable": "^3.2.4",
    "karma-html-reporter": "^0.2.7",
    "karma-phantomjs-launcher": "^1.0.4",
    "karma-teamcity-reporter": "^1.1.0",
    "ng-chartist": "^1.1.1",
    "ng2-charts": "^1.6.0",
    "ng2-dragula": "^1.5.0",
    "ng2-file-upload": "^1.3.0",
    "ng2-smart-table": "1.2.2",
    "ngx-pagination": "^4.1.0",
    "ngx-perfect-scrollbar": "6.1.0",
    "ngx-quill": "^3.6.0",
    "ngx-toastr": "^8.10.2",
    "ngx-tooltip": "0.0.9",
    "node-sass": "^4.12.0",
    "pace-js": "^1.0.2",
    "quill": "^1.3.6",
    "rxjs": "^6.5.2",
    "rxjs-compat": "^6.5.2",
    "zone.js": "^0.8.29"
  },

"devDependencies": {
    "@angular-builders/custom-webpack": "^8.2.0",
    "@angular-devkit/build-angular": "^0.10.7",
    "@angular/cli": "~7.0.3",
    "@angular/compiler-cli": "^7.0.1",
    "@angular/language-service": "^7.0.1",
    "@types/c3": "^0.6.4",
    "@types/chartist": "^0.9.46",
    "@types/datatables.net": "^1.10.17",
    "@types/jasmine": "^2.8.16",
    "@types/jasminewd2": "^2.0.6",
    "@types/jquery": "^3.3.31",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.2.1",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "^4.3.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~1.4.2",
    "karma-jasmine": "^2.0.1",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "^5.4.2",
    "ts-node": "~5.0.1",
    "tslint": "~5.9.1",
    "typescript": "^3.1.6"
  },

i.e Image My Karma chrome launcher is blank -

karma-blank

Errors on screen - karma-screen-shot

karma-runner / karma-chrome-launcher

Karma chrome launcher is blank #212