Ionic CLI build process fails with error: Module ''*'' has no exported member

Hi, I’m trying to add angular2-disqus (https://github.com/Useful-Software-Solutions-Ltd/angular2-disqus) to my Ionic2-app. It’s working on desktop, but the ionic-cli build process fails with following error.

[19:17:52]  Error: Error at .../.tmp/pages/list-detail/list-detail.ngfactory.ts:244:40
[19:17:52]  Module ''*'' has no exported member 'Wrapper_DisqusThreadComponent'.
[19:17:52]  ngc failed
[19:17:52]  ionic-app-script task: "build"
[19:17:52]  Error: Error

Any idea what could cause this?