Today I installed qtcreator 3.3.2 from qt.io but it didn't solve the problem. following output prints on terminal when ui.qml file is open, then application crashes. QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings Segmentation fault (core dumped) On Mon, Mar 9, 2015 at 7:17 PM, Sadika Sumanapala <sadikahs@xxxxxxxxx> wrote: > > On Mar 9, 2015 3:56 AM, "Tobias Hunger" <tobias.hunger@xxxxxxxxx> wrote: > > > > Hi Sadika, > > > > There was a brown paperbag issue in the 3.3.1 release of Qt Creator > > related to the designer. I don't know the details, but it was related > > to the designer. You might want to try the newest patchlevel release > > (3.3.2) which has that fixed. > > > > Best Regards, > > Tobias > > > > Hi Tobias. I couldn't find qtcreator 3.3.2 either in official packages or > in aur. > I'll try it when it become available. > > > On Sun, Mar 8, 2015 at 3:08 PM, Sadika Sumanapala <sadikahs@xxxxxxxxx> > wrote: > > > On Mar 7, 2015 11:54 PM, "Antonio Rojas" <arojas@xxxxxxxxxxxxx> wrote: > > >> > > >> Sadika Sumanapala wrote: > > >> > > >> > Hi, > > >> > > > >> > I have QtCreator installed on my system. When I switch to designer > mode > > >> > (by > > >> > opening *.ui.qml file) some of the window areas goes black, > application > > >> > start to response slowly and the crashes. > > >> > > > >> > This happens on both Nouveau & NVIDIA drives (If this matter). > > >> > > > >> > Does anyone knows to solve this problem? > > >> > > >> Could be related to https://bugs.archlinux.org/task/44083 > > >> Can you try downgrading to Qt 5.4.0? > > > > > > Today I tried it, but it didn't work > > > Any other suggestion? Does anyone suffering from the same problem? > -- *Sadika Sumanapala* *Mobile:* +94 77 59 29 123 *E-Mail:* sadikahs@xxxxxxxxx