Errors line description not showing on the report

[janppires]

I am using webpack with karma, with Alternative usage configured. How can I enable the line where the error is?
Useful information:

webpack.config

devtool: 'inline-source-map'

karma.config

var path = require('path');
var webpackConfig = require('./webpack.config');
var entry = path.resolve(webpackConfig.entry.bundle);
var preprocessors = {};
preprocessors[entry] = ['webpack', 'sourcemap'];

module.exports = function(config) {
  config.set({
      browsers: ['PhantomJS'],
      frameworks: ['mocha', 'chai-jquery', 'jquery-2.1.0', 'sinon-chai'],
      reporters: ['mocha'],
      logLevel: config.LOG_INFO,
      autoWatch: true,
      singleRun: false,
      colors: true,
      port: 9876,
      basePath: '',
      files: [
          entry,
          'node_modules/chai-angular/chai-angular.js'
      ],

      // list of files to exclude
      exclude: [],
      webpack : webpackConfig,
      preprocessors: preprocessors,
      concurrency: Infinity,

      // omit plugins to allow automatic inclusion
      // plugins :[]
  })

Actual result:

FAILED TESTS:
  The AdNetworks Data Service
    when the service is accessed
      ✖ reloads networks from the api and also returns a promise
        PhantomJS 2.1.1 (Mac OS X 0.0.0)
      expected [ Array(4) ] to be a resource and deeply equal [ Array(4) ], but was [ Array(4) ]

      ✖ reloads networks and transforms data properly
        PhantomJS 2.1.1 (Mac OS X 0.0.0)
      expected false to be true

Expected a result with in which line the error has occurred, like

src/main/webapp/app/data-services/adnetworks/adnetworks-data.service.spec.js:102:22

Thanks!

[codymikol]

It seems that this mostly had to do with the mocha reporter, but this is from so long ago that I can't triage. If you are still having this problem by chance, feel free to open another issue with the current information and I'll be happy to assist!