'class UI::MainWindow' has no member named 'comboBox'

shree_121

i added combox in mainwindow.ui file still i encountered error as 'class UI::MainWindow' has no member named 'comboBox' . What is the issue?

JonB

This post is deleted!

ProfK

Have the same problem. Added comboBox to existing GUI via drag and drop. Here's the automatically generated code:

<widget class="QComboBox" name="comboBox">
    <property name="geometry">
     <rect>
      <x>890</x>
      <y>170</y>
      <width>73</width>
      <height>22</height>
     </rect>
    </property>
   </widget>

All of the other widgets are accessible. If I type ui-> in mainwindow, comboBox is not offered as autocompletion and I get the same error message as shree.

aha_1980

Does it work if you compile your project again after adding the widget?

The automatic generated code in XML format must be converted to an ui_xxx.h file for the code completion to jump in. I noticed too, that it sometimes does not work immediately.

ProfK

Yes, recompiling did the trick. Is this a feature or a bug? ;-)

aha_1980

Hi @ProfK,

It's a bug related to the Clang Code Model. This problem does not appear with the Classic Code Model, because (IIRC), there the XML file was pre-compiled in memory to feed the code model. That seems no longer the case with Clang.

I've created QTCREATORBUG-21045 to track this issue. Feel free to comment and vote there.

Regards

shree_121

HI @aha_1980 ,
i recompiled after adding comboBox still error not disappeared?
XML code is :
<widget class="QComboBox" name="comboBox"/>

ambershark

@shree_121 Did you rerun qmake too? It may need to moc that UI again. I find Qt needs qmake run quite a bit when changing things that need moc'ing. Specifically interface files. I pretty much assume I need make distclean && qmake && make (or a windows equivalent) to truly rebuild.

Togar1560

@ProfK
Compiling worked for me.. thanks.

Induwara.super

Compiling worked for me too,
Thanks @aha_1980

CN_Cabbage

Click the hammer icon on the bottom left to build the project.