TypeError: Cannot read property 'isValidUTF8' of undefined

[kevinsalter]

Expected behaviour

The test runner runs successfully.

Actual behaviour

An error is thrown when running karma start karma.conf.js --single-run in an Angular 2.4.7 project.

17 07 2017 14:37:25.450:INFO [karma]: Karma v1.7.0 server started at http://0.0.0.0:9876/
17 07 2017 14:37:25.450:INFO [launcher]: Launching browser Chrome with unlimited concurrency
17 07 2017 14:37:25.457:INFO [launcher]: Starting browser Chrome
17 07 2017 14:37:26.898:ERROR [karma]: TypeError: Cannot read property 'isValidUTF8' of undefined
    at /Users/kevinsalter/code/esportspools/resources/assets/site/node_modules/karma/node_modules/ws/lib/Receiver.js:532:28
    at /Users/kevinsalter/code/esportspools/resources/assets/site/node_modules/karma/node_modules/ws/lib/Receiver.js:368:7
    at /Users/kevinsalter/code/esportspools/resources/assets/site/node_modules/karma/node_modules/ws/lib/PerMessageDeflate.js:249:5
    at afterWrite (_stream_writable.js:385:3)
    at onwrite (_stream_writable.js:376:7)
    at WritableState.onwrite (_stream_writable.js:90:5)
    at afterTransform (_stream_transform.js:79:3)
    at TransformState.afterTransform (_stream_transform.js:54:12)
    at Zlib.callback (zlib.js:639:5)

Environment Details

Here are all packages in package.json of the project

"dependencies": {
    "@angular/common": "2.4.7",
    "@angular/compiler": "2.4.7",
    "@angular/core": "2.4.7",
    "@angular/forms": "2.4.7",
    "@angular/http": "2.4.7",
    "@angular/platform-browser": "2.4.7",
    "@angular/platform-browser-dynamic": "2.4.7",
    "@angular/router": "3.4.7",
    "@angular/upgrade": "2.4.7",
    "@ng-bootstrap/ng-bootstrap": "1.0.0-alpha.14",
    "angular2-swiper": "0.8.1",
    "core-js": "2.4.1",
    "intl": "1.2.5",
    "ng2-lazyload-image": "2.4.0",
    "reflect-metadata": "0.1.10",
    "rxjs": "5.4.0",
    "swiper": "3.4.2",
    "systemjs": "0.19.39",
    "ui-cropper": "1.0.4",
    "zone.js": "0.7.8"
  },
  "devDependencies": {
    "@types/core-js": "0.9.36",
    "@types/jasmine": "2.5.51",
    "@types/lodash": "4.14.51",
    "@types/node": "4.2.11",
    "apache-server-configs": "2.14.0",
    "awesome-typescript-loader": "3.1.3",
    "clean-webpack-plugin": "0.1.16",
    "concurrently": "3.4.0",
    "connect-modrewrite": "0.8.5",
    "grunt": "0.4.5",
    "grunt-autoprefixer": "1.0.1",
    "grunt-concurrent": "0.5.0",
    "grunt-contrib-clean": "0.6.0",
    "grunt-contrib-concat": "0.5.1",
    "grunt-contrib-connect": "0.8.0",
    "grunt-contrib-copy": "0.5.0",
    "grunt-contrib-cssmin": "0.10.0",
    "grunt-contrib-htmlmin": "0.4.0",
    "grunt-contrib-imagemin": "0.8.1",
    "grunt-contrib-jshint": "0.10.0",
    "grunt-contrib-less": "1.4.1",
    "grunt-contrib-uglify": "0.9.2",
    "grunt-contrib-watch": "0.6.1",
    "grunt-mocha": "0.4.15",
    "grunt-modernizr": "0.5.2",
    "grunt-newer": "0.7.0",
    "grunt-ng-annotate": "2.0.2",
    "grunt-rev": "0.1.0",
    "grunt-svg-sprite": "1.3.7",
    "grunt-svgmin": "0.4.0",
    "grunt-systemjs-builder": "0.2.7",
    "grunt-ts": "5.5.1",
    "grunt-usemin": "2.6.2",
    "grunt-wiredep": "1.9.0",
    "jasmine-core": "2.6.3",
    "jit-grunt": "0.9.1",
    "jshint-stylish": "0.4.0",
    "karma": "1.7.0",
    "karma-chrome-launcher": "2.1.1",
    "karma-cli": "1.0.1",
    "karma-htmlfile-reporter": "0.3.5",
    "karma-jasmine": "1.1.0",
    "karma-jasmine-html-reporter": "0.2.2",
    "load-grunt-tasks": "0.4.0",
    "localforage": "1.5.0",
    "lodash": "4.17.4",
    "ng2-file-upload": "1.2.1",
    "spawn-sync": "1.0.15",
    "time-grunt": "0.4.0",
    "typescript": "2.1.6",
    "webpack": "2.6.1",
    "webpack-livereload-plugin": "0.9.0",
    "webpack-merge": "1.1.2"
  },

• Karma version: 1.7.0
• I'm using the following plugins in karma.config.js

plugins: [
            require('karma-jasmine'),
            require('karma-chrome-launcher'),
            require('karma-jasmine-html-reporter'), // click "Debug" in browser to see it
            require('karma-htmlfile-reporter') // crashing w/ strange socket error
        ],

Steps to reproduce the behaviour

1. run karma start karma.conf.js --single-run

[amir-arad]

could this be pushed to version 1 as well?

[johnjbarton]

Maintaining two independent release tracks would drain energy from the mainline. Is there some reason you can't use 2.x?