<![CDATA[Qt Creator Designer "Line: 0: The Design Mode requires a valid Qt kit." with Kit installed and code buildable.]]>

<![CDATA[Qt Creator Designer "Line: 0: The Design Mode requires a valid Qt kit." with Kit installed and code buildable.]]> Screenshot 2026-03-02 at 12.58.33.png

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I have a stock Python QtQuick QML Project. I am using the autodetect kit. I can modify the .qml and .py code with no issues and build the project and have it display. Yet designer complains about missing Qt a valid QtKit?

]]>https://forum.qt.io/topic/164353/qt-creator-designer-line-0-the-design-mode-requires-a-valid-qt-kit.-with-kit-installed-and-code-buildable.RSS for NodeMon, 13 Apr 2026 17:01:26 GMTMon, 02 Mar 2026 12:01:02 GMT60<![CDATA[Reply to Qt Creator Designer "Line: 0: The Design Mode requires a valid Qt kit." with Kit installed and code buildable. on Tue, 03 Mar 2026 06:18:29 GMT]]>Hi, and welcome!

@Sneako said in Qt Creator Designer "Line: 0: The Design Mode requires a valid Qt kit." with Kit installed and code buildable.:

Yet designer complains about missing Qt a valid QtKit?

Maybe the Qt Quick Designer only recognizes C++ kits. Does the warning disappear if you create a C++ project?

]]>https://forum.qt.io/post/836731https://forum.qt.io/post/836731Tue, 03 Mar 2026 06:18:29 GMT