executing in gdb it reports: Thread 1 "kicad" received signal SIGSEGV, Segmentation fault. 0x00007fffda2a37e9 in TOOL_MANAGER::RunAction (this=0x0, aAction=..., aNow=true, aParam=0x0) at /home/dinoghi/SANDBOXKICAD5/src/kicad/common/tool/tool_manager.cpp:303 303 TOOL_STATE* current = m_activeState; ---------------------- backtrace: ---------------------- #0 0x00007fffda2a37e9 in TOOL_MANAGER::RunAction (this=0x0, aAction=..., aNow=true, aParam=0x0) at /home/dinoghi/SANDBOXKICAD5/src/kicad/common/tool/tool_manager.cpp:303 #1 0x00007fffd9882466 in TOOL_MANAGER::RunAction (this=0x0, aAction=..., aNow=true) at /home/dinoghi/SANDBOXKICAD5/src/kicad/include/tool/tool_manager.h:157 #2 0x00007fffd98ebfa2 in DIALOG_FIND::onButtonFindItemClick (this=0x55555840c290, aEvent=...) at /home/dinoghi/SANDBOXKICAD5/src/kicad/pcbnew/dialogs/dialog_find.cpp:88 #3 0x00007ffff634440e in wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #4 0x00007ffff64c9ea5 in wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #5 0x00007ffff64ca29d in wxEvtHandler::SearchDynamicEventTable(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #6 0x00007ffff64ca31f in wxEvtHandler::TryHereOnly(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #7 0x00007ffff64ca3d3 in wxEvtHandler::ProcessEventLocally(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #8 0x00007ffff64ca435 in wxEvtHandler::ProcessEvent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #9 0x00007ffff64ca1a7 in wxEvtHandler::SafelyProcessEvent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0 #10 0x00007ffff6cb77d7 in ?? () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0 #11 0x00007ffff2954f75 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #12 0x00007ffff2967053 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #13 0x00007ffff296fbdc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #14 0x00007ffff296ffbf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #15 0x00007ffff2eda01e in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #16 0x00007ffff2f7e7bc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #17 0x00007ffff2954f75 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #18 0x00007ffff296737d in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #19 0x00007ffff296f67f in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #20 0x00007ffff296ffbf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #21 0x00007ffff30968ac in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #22 0x00007ffff2f7d03f in gtk_propagate_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #23 0x00007ffff2f7d33b in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 #24 0x00007ffff2bf2cbc in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0 #25 0x00007ffff1ecb7f7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #26 0x00007ffff1ecba60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #27 0x00007ffff1ecbd82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #28 0x00007ffff2f7c3b7 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0