raul@AMDQC:~$ cd '/usr/lib/freecad-daily/bin/' raul@AMDQC:/usr/lib/freecad-daily/bin$ gdb FreeCAD GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from FreeCAD...(no debugging symbols found)...done. (gdb) handle SIG33 noprint nostop Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) run Starting program: /usr/lib/freecad-daily/bin/FreeCAD [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". FreeCAD 0.17, Libs: 0.17R13331 (Git) © Juergen Riegel, Werner Mayer, Yorik van Havre 2001-2018 ##### #### ### #### # # # # # # # ## #### #### # # # # # #### # # # # # # # ##### # # # # #### #### # # # # # # # # # # # # # # ## ## ## # # #### #### ### # # #### ## ## ## [New Thread 0x7fffde478700 (LWP 31114)] [New Thread 0x7fffddc77700 (LWP 31115)] [New Thread 0x7fffdd1a9700 (LWP 31116)] [New Thread 0x7fffccea0700 (LWP 31117)] [New Thread 0x7fffc7fff700 (LWP 31119)] [New Thread 0x7fffbca45700 (LWP 31120)] [New Thread 0x7fffbc244700 (LWP 31121)] [Thread 0x7fffccea0700 (LWP 31117) exited] [New Thread 0x7fffccea0700 (LWP 31124)] [New Thread 0x7fff75ca8700 (LWP 31125)] [New Thread 0x7fff74ced700 (LWP 31126)] [New Thread 0x7fff6f436700 (LWP 31128)] [New Thread 0x7fff6ec35700 (LWP 31129)] [New Thread 0x7fff6e434700 (LWP 31130)] [New Thread 0x7fff58d7e700 (LWP 31131)] [New Thread 0x7fff5897d700 (LWP 31132)] [New Thread 0x7fff5857c700 (LWP 31133)] [Thread 0x7fffc7fff700 (LWP 31119) exited] [Thread 0x7fff6f436700 (LWP 31128) exited] FreeCAD: /build/freecad-daily-HVw0eJ/freecad-daily-0.17~alpha1+git201802241852~ubuntu16.04.1/src/Mod/Spreadsheet/App/PropertySheet.cpp:381: const Spreadsheet::Cell* Spreadsheet::PropertySheet::cellAt(App::CellAddress) const: Assertion `i != data.end()' failed. Thread 1 "FreeCAD" received signal SIGABRT, Aborted. 0x00007ffff46e7428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 54 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 0x00007ffff46e7428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 #1 0x00007ffff46e902a in __GI_abort () at abort.c:89 #2 0x00007ffff46dfbd7 in __assert_fail_base (fmt=, assertion=assertion@entry=0x7fff6d3dee16 "i != data.end()", file=file@entry=0x7fff6d3df0a0 "/build/freecad-daily-HVw0eJ/freecad-daily-0.17~alpha1+git201802241852~ubuntu16.04.1/src/Mod/Spreadsheet/App/PropertySheet.cpp", line=line@entry=381, function=function@entry=0x7fff6d3df8a0 "const Spreadsheet::Cell* Spreadsheet::PropertySheet::cellAt(App::CellAddress) const") at assert.c:92 #3 0x00007ffff46dfc82 in __GI___assert_fail ( assertion=0x7fff6d3dee16 "i != data.end()", file=0x7fff6d3df0a0 "/build/freecad-daily-HVw0eJ/freecad-daily-0.17~alpha1+git201802241852~ubuntu16.04.1/src/Mod/Spreadsheet/App/PropertySheet.cpp", line=381, function=0x7fff6d3df8a0 "const Spreadsheet::Cell* Spreadsheet::PropertySheet::cellAt(App::CellAddress) const") at assert.c:101 #4 0x00007fff6d3a8fc0 in Spreadsheet::PropertySheet::cellAt(App::CellAddress) const () from /usr/lib/freecad-daily/lib/Spreadsheet.so #5 0x00007fff6d3a8ff7 in Spreadsheet::PropertySheet::getSpans(App::CellAddress, int&, int&) const () from /usr/lib/freecad-daily/lib/Spreadsheet.so #6 0x00007fff6d10eb49 in SpreadsheetGui::SheetTableView::updateCellSpan(App::CellAddress) () from /usr/lib/freecad-daily/lib/SpreadsheetGui.so ---Type to continue, or q to quit---