Posted by Lumaja on Nov 06, 2014; 11:53am
URL: https://forum.librecad.org/crash-on-saving-tp5710581p5710615.html

Open Terminal enter “librecad” it open with error in terminal but I carry on on saving file it close again sending result of Terminal it might help.
 luis@luis-G41M-Combo:~$ librecad
RS_DEBUG::setLevel(3)
RS_DEBUG: Critical
RS_DEBUG: Errors
RS_DEBUG: Warnings
Got bus address:  "unix:abstract=/tmp/dbus-O7dlqekdI5,guid=a610166aaed5b8adc8e17e040000001d"
Connected to accessibility bus at:  "unix:abstract=/tmp/dbus-O7dlqekdI5,guid=a610166aaed5b8adc8e17e040000001d"
Registered DEC:  true
Registered event listener change listener:  true
QSpiAccessible::accessibleEvent not handled:  "8008"  obj:  QObject(0x0)  " invalid interface!"
QSpiAccessible::accessibleEvent not handled:  "8008"  obj:  QSidebar(0xb7de550, name = "sidebar") "sidebar"
FIXME: handle dialog start.
QSpiAccessible::accessibleEvent not handled:  "8008"  obj:  QObject(0x0)  " invalid interface!"
Interface is not valid
ASSERT failure in : "Got an update for an invalid inteface. Investigate this.", file atspiadaptor.cpp, line 899
Aborted (core dumped)
luis@luis-G41M-Combo:~$

As I have another HD with Ubuntu 14.04 install LibreCad and tried the same file save and it work
perfectly.
I hope this will help
Thank you