Qt wont launch



  • I have a chromebook with crouton and ubuntu 14.04 on it.

    I have installed Qt and when I try to launch it - nothing happens.
    I have a 64bit system and I installed the 64bit version of Qt.



  • @Tomkis

    From where did you install Qt?
    Did you use the online installer from official webpage?
    what are the tools you have selected for installation?
    Did you select a version?

    Do you see any error messages?



  • @koahnig

    • No error message.

    • I used the online installer

    • I installed the newest version of Qt

    • I only selected 5.7Qt



  • I have installed Qt and when I try to launch it

    Please define "it". Qt Creator?



  • Hi,

    Download and Install qt creator from the below link

    https://www.qt.io/download-open-source/

    and after downloading, install the Qt creator.

    Then use the below command

    ./qtcreator from terminal.

    check what is the error status ur getting or wheather launching successfully.

    Thanks,


  • Qt Champions 2017

    Hi
    as @Pradeep-Kumar suggest , try to start it from command line.
    The welcome screen needs opengl and your chromebook might not have it ?
    So try start without it and see if Creator shows up then.

    qtcreator -noload Welcome



  • This is the error I get when trying to launch from terminal:

    This appliaction failed to start because it could not find or load the Qt platform plugin "xcb" in " ".

    Available platform plaugins are : eglfs,linuxfb,minimal,minimalegl,offscreen,xcb.

    Reinstalling the application may fix this problem.
    Aborted (core dumped)


  • Qt Champions 2017

    @Tomkis said in Qt wont launch:

    appliaction failed to start because it could not find or load the Qt platform plugin "xcb" in " ".

    Something wrong in your install or the linux. ( or not hooked up properly)

    http://stackoverflow.com/questions/29405689/qt-5-4-1-this-application-failed-to-start-because-it-could-not-find-or-load-th

    "Try to go to the platforms folder of the Qt installation your program is using and run ldd libqxcb.so in a command prompt. Then check in the output if there are any missing dependencies. If the libqxcb.so is missing one of its dependencies this produces the output you mentioned."

    Is worth trying.


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