Same problem, Fedora 19, TB 24.4.0, Lightning 2.6.4, calendar.google.enableEmailInvitations=true, mail.inline_attachments=true.
Message displayed in reader is "No writable calendars are configured for invitations, please check the calendar properties."
I have verified a full round trip writable google calendar by adding an event to the TB calendar then checking on the google website, deleting the event there and then resyncing on TB.
There must be another rouge/uninitialzed condition in the check.
Same problem, Fedora 19, TB 24.4.0, Lightning 2.6.4, calendar. google. enableEmailInvi tations= true, mail.inline_ attachments= true.
Message displayed in reader is "No writable calendars are configured for invitations, please check the calendar properties."
I have verified a full round trip writable google calendar by adding an event to the TB calendar then checking on the google website, deleting the event there and then resyncing on TB.
There must be another rouge/uninitialzed condition in the check.