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Qt platform plug-in missing



  • I am trying to use new software but each time I try to open it up ,I get a message saying that no Qt platform plug-in could be initialized..
    what is this ,where do I get it ?
    Everything else on my PC works OK. I am using Windows 10.
    The software was written by a person , software has to do with radio hobby related things. There are Qt commands in the software.



  • Hello!

    It could be this issue: https://forum.qt.io/topic/101157/no-qt-platform-plugin-could-be-initialized
    Your application is QML or Widgets?

    You can try my solution for Qt Widgets application. Add the code below to your project .pro file for your app, then click Clean, Run qmake, Build:

    Widgets app:

    QMAKE_POST_LINK = $$(QTDIR)/bin/windeployqt.exe $$shell_quote($$DESTDIR/$$shell_quote($$TARGET).exe) --no-compiler-runtime
    

    QML app:

    QMAKE_POST_LINK = $$(QTDIR)/bin/windeployqt.exe $$shell_quote($$DESTDIR/$$shell_quote($$TARGET).exe) --qmldir $$shell_quote($$(QTDIR)/qml) --no-compiler-runtime
    

    Also, check out the documentation for windeployqt: https://doc.qt.io/qt-5/windows-deployment.html


  • Moderators

    Hi, and welcome!

    @aloknj said in Qt platform plug-in missing:

    I am trying to use new software

    Where did you get the software from?

    but each time I try to open it up ,I get a message saying that no Qt platform plug-in could be initialized..
    what is this ,where do I get it ?

    This message is telling you that a Qt DLL could not be loaded correctly. However, we don't have enough information to tell you why your software failed to load the DLL.

    The software was written by a person , software has to do with radio hobby related things. There are Qt commands in the software.

    Can you contact this person? They should know how to fix the problem.


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