The problem is not really u1db-qt but that /usr/share/ubuntu-ui- toolkit/doc/html/ubuntuuserinterfacetoolkit.index has four qmlmodule without qml-module-name="", this is a regression from Qt 5.4
I'm trying to figure out where they come from and why it regressed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to u1db-qt in Ubuntu. https://bugs.launchpad.net/bugs/1447182 Title: u1db-qt FTBFS with Qt 5.5 Status in u1db-qt package in Ubuntu: Triaged Bug description: u1db-qt fails to build with Qt 5.5. Build log: https://launchpadlibrarian.net/204005182/buildlog_ubuntu-vivid-amd64 .u1db- qt_0.1.5%2B15.04.20150327-0ubuntu2~vivid1~test1~qt550alpha1_BUILDING.txt.gz -- documentation/CMakeFiles/doc.dir/build.make:60: recipe for target 'documentation/overview.html' failed -- More information about Qt 5.5 at https://wiki.ubuntu.com/Touch/QtTesting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/u1db-qt/+bug/1447182/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp