Bug#800796: gnome-calendar: fails to start every time, "Error building template class" and segfault

[Ritchie Wilson]

Package: gnome-calendar
Version: 3.16.2-1
Severity: important

Dear Maintainer,

gnome-calendar was been working fine for weeks. But today I try opening it and
it fails everytime. Running gnome-calendar from terminal I get:

(gnome-calendar:5658): Gtk-CRITICAL **: Error building template class
'GcalWindow' for an instance of type 'GcalWindow': .:155:1 Can't use <style>
here
Segmentation fault


I'm not sure how else to debug this, but I'm happy to provide any other
information I can.



-- System Information:
Debian Release: stretch/sid
  APT prefers oldstable-updates
  APT policy: (500, 'oldstable-updates'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gnome-calendar depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.24.0-2
ii  libatk1.0-0                                  2.18.0-1
ii  libc6                                        2.19-22
ii  libcairo-gobject2                            1.14.2-2
ii  libcairo2                                    1.14.2-2
ii  libcamel-1.2-52                              3.16.5-2
ii  libecal-1.2-18                               3.16.5-2
ii  libedataserver-1.2-20                        3.16.5-2
ii  libedataserverui-1.2-1                       3.16.5-2
ii  libgdk-pixbuf2.0-0                           2.32.0-1
ii  libglib2.0-0                                 2.46.0-2
ii  libgtk-3-0                                   3.18.0-3
ii  libical1a                                    1.0.1-0.1
ii  libnspr4                                     2:4.10.9-2
ii  libnss3                                      2:3.20-1
ii  libnss3-1d                                   2:3.20-1
ii  libpango-1.0-0                               1.38.0-3
ii  libpangocairo-1.0-0                          1.38.0-3
ii  libsecret-1-0                                0.18.3-1
ii  libsoup2.4-1                                 2.52.0-1
ii  libsqlite3-0                                 3.8.11.1-1
ii  libxml2                                      2.9.2+zdfsg1-4

gnome-calendar recommends no packages.

gnome-calendar suggests no packages.

-- no debconf information