# Crash on startup

**URL:** <https://discourse.slicer.org/t/crash-on-startup/12835>\
**Category:** Development\
**Created:** [August 3, 2020, 4:24pm UTC](https://discourse.slicer.org/t/crash-on-startup/12835 "2020-08-03T16:24:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![gcsharp](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/gcsharp/32/863_2.png) [@gcsharp](https://discourse.slicer.org/u/gcsharp)\
**Post date:** [August 3, 2020, 4:24pm UTC](https://discourse.slicer.org/t/crash-on-startup/12835/1 "2020-08-03T16:24:34Z")

</div>

This is on linux. gcc 8.3.0, Qt 5.11.3. I have to build with Slicer\_USE\_PYTHONQT\_WITH\_OPENSSL disabled, but all other options as default. Any ideas?

```
Thread 1 "SlicerApp-real" received signal SIGSEGV, Segmentation fault.
0x00007fffe31644ac in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
(gdb) bt
#0 0x00007fffe31644ac in () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#1 0x00007fffe3165300 in QDialogButtonBox::setStandardButtons(QFlags<QDialogButtonBox::StandardButton>) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#2 0x00007ffff72f5699 in Ui_ctkSettingsDialog::setupUi(QDialog*)
    (this=0x5555563e40e0, ctkSettingsDialog=0x555556f09a40)
    at /PHShome/gcs6/build/slicer-4/Slicer-debug/CTK-build/CTK-build/Libs/Widgets/ui_ctkSettingsDialog.h:57
#3 0x00007ffff72f26d5 in ctkSettingsDialogPrivate::init()
    (this=0x5555563e40e0)
    at /PHShome/gcs6/build/slicer-4/Slicer-debug/CTK/Libs/Widgets/ctkSettingsDialog.cpp:75
#4 0x00007ffff72f3446 in ctkSettingsDialog::ctkSettingsDialog(QWidget*)
    (this=0x555556f09a40, _parent=0x0)
    at /PHShome/gcs6/build/slicer-4/Slicer-debug/CTK/Libs/Widgets/ctkSettingsDialog.cpp:187
#5 0x00007ffff7ad23bd in qSlicerApplicationPrivate::init() (this=
    0x555555aa20e0)
    at /PHShome/gcs6/build/slicer-4/Slicer/Base/QTGUI/qSlicerApplication.cxx:252
#6 0x00007ffff7ad307f in qSlicerApplication::qSlicerApplication(int&, char**)
    (this=0x7fffffffda20, _argc=@0x7fffffffd9cc: 1, _argv=0x7fffffffdb88)
    at /PHShome/gcs6/build/slicer-4/Slicer/Base/QTGUI/qSlicerApplication.cxx:358
#7 0x000055555555c9a9 in (anonymous namespace)::SlicerAppMain(int, char**)
    (argc=1, argv=0x7fffffffdb88)
    at /PHShome/gcs6/build/slicer-4/Slicer/Applications/SlicerApp/Main.cxx:40
#8 0x000055555555ccbb in main(int, char**) (argc=1, argv=0x7fffffffdb88)
    at /PHShome/gcs6/build/slicer-4/Slicer/Base/QTApp/qSlicerApplicationMainWrapper.cxx:56
```