Kibana showing red message

[M.alsioufi]

Hi there,
I have downloaded Elasticsearch 6 and Kibana 6 with x-pack,I also followed the instruction to set up X-pack mentioned here and finally inserted the example dataset mentioned here
However, when I open Kibana I got this error message,

Error: [object Object]: [security_exception] missing authentication token for REST request [/logstash-*/_field_caps?fields=*&ignore_unavailable=true&allow_no_indices=false], with { header={ WWW-Authenticate="Basic realm=\"security\" charset=\"UTF-8\"" } } at http://localhost:5601/bundles/kibana.bundle.js?v=16070:27:1911 at processQueue (http://localhost:5601/bundles/commons.bundle.js?v=16070:39:9912) at http://localhost:5601/bundles/commons.bundle.js?v=16070:39:10805 at Scope.$digest (http://localhost:5601/bundles/commons.bundle.js?v=16070:39:21741) at Scope.$apply (http://localhost:5601/bundles/commons.bundle.js?v=16070:39:24520) at done (http://localhost:5601/bundles/commons.bundle.js?v=16070:38:9495) at completeRequest (http://localhost:5601/bundles/commons.bundle.js?v=16070:38:13952) at XMLHttpRequest.xhr.onload (http://localhost:5601/bundles/commons.bundle.js?v=16070:38:14690)
I can't neither build a visualisation nor open Discover. But I can access my data in the Dev Tools
My work environment is Chrome browser on a Mac laptop

[jbudz (Jon Budzenski)]

It almost looks like something went wrong with installing x-pack in kibana. Are you seeing icons in the sidebar for monitoring and graph?

Are you seeing any basic auth prompts in kibana?

[M.alsioufi]

Thanks for your reply, all the icons were shown, nothing weird about the interface except for the red toolbar on top of the screen showing the error. When I removed xpack it worked normally, so it should be something with it, but I have no idea exactly what is it as I followed all the instruction carefully.