WebStorm: Karma server not starting, TypeError: undefined is not a function on server.start(); - npm

Question

I have the latest version of WebStorm (10.0.4). Today I wanted to include karma in my project so I installed Python and ran:
npm install -g karma
npm install karma
npm install karma-jasmine
npm install karma-chrome-launcher
npm install karma-phantomjs-launcher
I tried it with two different config files, one for my project and one superbasic config, but both throw the same error. Here is the basic config:
// Karma configuration
// Generated on Fri Jul 17 2015 14:05:46 GMT+0200 (Mitteleuropäische Sommerzeit)
module.exports = function(config) {
config.set({
// base path that will be used to resolve all patterns (eg. files, exclude)
basePath: '',
// frameworks to use
// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
frameworks: ['jasmine'],
// list of files / patterns to load in the browser
files: [
'test/**/*Spec.js'
],
// list of files to exclude
exclude: [
],
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
},
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
reporters: ['progress'],
// web server port
port: 9876,
// enable / disable colors in the output (reporters and logs)
colors: true,
// level of logging
// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
logLevel: config.LOG_INFO,
// enable / disable watching file and executing tests whenever any file changes
autoWatch: true,
// start these browsers
// available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
browsers: ['Chrome'],
// Continuous Integration mode
// if true, Karma captures browsers, runs the tests and exits
singleRun: false
})
}
I then created a new "Karma" Run configuration, but when I click run, it says:
"C:\Program Files\nodejs\node.exe" "C:\Program Files (x86)\JetBrains\WebStorm 10.0.4\plugins\js-karma\js_reporter\karma-intellij\lib\intellijServer.js" --karmaPackageDir=C:\workspace\full_ui\node_modules\karma --configFile=C:\workspace\full_ui\tests\karma.conf_messages.js --browsers=Chrome
C:\Program Files (x86)\JetBrains\WebStorm 10.0.4\plugins\js-karma\js_reporter\karma-intellij\lib\intellijServer.js:10
server.start(cliOptions);
^
TypeError: undefined is not a function
at Object.<anonymous> (C:\Program Files (x86)\JetBrains\WebStorm 10.0.4\plugins\js-karma\js_reporter\karma-intellij\lib\intellijServer.js:10:8)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
at startup (node.js:129:16)
at node.js:814:3
Process finished with exit code 1
I really don't know what could cause this problem. Did I miss anything to install? I have never used karma before, so I might have some basic error somewhere, but I can't figure out what.

Answer 1

I think this may be caused by a recent update to the karma lib 9 days ago
https://github.com/karma-runner/karma/commits/master/lib/server.js
It could be the intellijServer.js is now out of date and needs to be altered. I've got it working by updating the intellijServer.js (until intellij fix it) with:
var cli = require('./intellijCli.js')
, Server = cli.requireKarmaModule('lib/server.js')
, cliOptions = { configFile: require.resolve('./intellij.conf.js') };
var browsers = cli.getBrowsers();
if (browsers != null) {
cliOptions.browsers = browsers;
}
var server=new Server(cliOptions);
server.start();
// Prevent karma server from being an orphan process.
// For example, if WebStorm is killed using SIGKILL, karma server will still be alive.
// When WebStorm is terminated, karma server's standard input is closed automatically.
process.stdin.resume();
process.stdin.on('close', function () {
// terminating orphan process
process.exit(123);
});
Once I got the server bit working i got another issue with No provider for “framework:jasmine”! (However this appears to be a separate unrelated issue affecting me, because I didn't fully setup karma).
This was resolved with:
npm install karma-jasmine --save-dev
npm install karma-chrome-launcher --save-dev
followed by
npm install