Just got this same bug after fresh elementaryOS install and then added a Google account to calendar.
[_LOG_LEVEL_INFO 00:13:47.168565] Application.vala:155: Calendar version: 0.3.1.1 [_LOG_LEVEL_INFO 00:13:47.168675] Application.vala:157: Kernel version: 3.19.0-56-generic [_LOG_LEVEL_FATAL 00:13:47.773995] maya_util_is_the_all_day: assertion 'dtend != NULL' failed [_LOG_LEVEL_FATAL 00:13:47.774076] Calendar will not function properly. [_LOG_LEVEL_FATAL 00:13:47.774174] [GLib] g_date_time_format: assertion 'datetime != NULL' failed [_LOG_LEVEL_FATAL 00:13:47.774223] Calendar will not function properly. [1] 3692 segmentation fault (core dumped) maya-calendar
Just got this same bug after fresh elementaryOS install and then added a Google account to calendar.
[_LOG_LEVEL_INFO 00:13:47.168565] Application. vala:155: Calendar version: 0.3.1.1 vala:157: Kernel version: 3.19.0-56-generic is_the_ all_day: assertion 'dtend != NULL' failed
[_LOG_LEVEL_INFO 00:13:47.168675] Application.
[_LOG_LEVEL_FATAL 00:13:47.773995] maya_util_
[_LOG_LEVEL_FATAL 00:13:47.774076] Calendar will not function properly.
[_LOG_LEVEL_FATAL 00:13:47.774174] [GLib] g_date_time_format: assertion 'datetime != NULL' failed
[_LOG_LEVEL_FATAL 00:13:47.774223] Calendar will not function properly.
[1] 3692 segmentation fault (core dumped) maya-calendar