Trace:
$ npm run watch
>
kanban@0.0.1 watch /home/tgerbet/Workspace/tuleap/plugins/agiledashboard/www/js/kanban
> NODE_ENV=watch $npm_package_config_bin/concurrently --raw --kill-others 'gulp watch' '$npm_package_config_bin/webpack --watch --mode=development' '$npm_package_config_bin/karma start ./karma.conf.js'
gulp[31263]: ../src/node_contextify.cc:628:static void node::contextify::ContextifyScript::New(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `args[1]->IsString()' failed.
1: 0x5566d5a95f24 node::Abort() [gulp]
2: 0x5566d5a9602c [gulp]
3: 0x5566d5ac90da node::contextify::ContextifyScript::New(v8::FunctionCallbackInfo<v8::Value> const&) [gulp]
4: 0x5566d5ce5dea [gulp]
5: 0x5566d5ce64fe [gulp]
6: 0x290f78ddbe1d