Thank you. I built it using the Launchpad service, can I add the overlay ppa there? I will check to have the overlay ppa enabled on my local machine and to have the latest snapd installed. Cheers, Fabio <div class="gmail_quote"><div dir="ltr">On Fri, 20 Jan 2017, 09:15 Alberto Mardegan, <<a href="mailto:alberto.mardegan@canonical.com">alberto.mardegan@canonical.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 19/01/2017 18:20, Fabio Colella wrote: > Hello, > I'm trying to snap a simple webapp for HexGL. > > Here's the code: <a href="https://github.com/fcole90/fcole-hexgl-webapp" rel="noreferrer" class="gmail_msg" target="_blank">https://github.com/fcole90/fcole-hexgl-webapp</a> > > Unfortunately it's failing to start due to the following error: > > Qt: Session management error: None of the authentication protocols > specified are supported > QGtkStyle could not resolve GTK. Make sure you have installed the proper > libraries. > "file:///build/webbrowser-app-4Hx99o/webbrowser-app-0.23+16.04.20160413/src/app/webcontainer/webapp-container.qml:-1 > File not found\n" Hi Fabio! As Pat already wrote, you should build it using xenial + stable-phone-overlay PPA. The reason for this is that the webapp-container in xenial is too old and doesn't support being run inside a snap. Also, in general, when using the ubuntu-app-platform snap (the webapp-helper part is using it) one should build the snap in xenial+overlay in order to make sure that he's using the same library versions as those provided by the ubuntu-app-platform snap. Ciao, Alberto -- Snapcraft mailing list <a href="mailto:Snapcraft@lists.snapcraft.io" class="gmail_msg" target="_blank">Snapcraft@lists.snapcraft.io</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/snapcraft" rel="noreferrer" class="gmail_msg" target="_blank">https://lists.ubuntu.com/mailman/listinfo/snapcraft</a> </blockquote></div>