It seems like it FTBFS because valac is not installable: https://launchpadlibrarian.net/188579156/buildlog_ubuntu-vivid-amd64.ibus_1.5.9-1ubuntu1_FAILEDTOBUILD.txt.gz
It seems like it FTBFS because valac is not installable: https:/ /launchpadlibra rian.net/ 188579156/ buildlog_ ubuntu- vivid-amd64. ibus_1. 5.9-1ubuntu1_ FAILEDTOBUILD. txt.gz