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  1. #1
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    Default Message "QSettings::value: Empty key passed" / Kubuntu

    Hi all,

    I'm on this "newbie" thread, but in fact I'm more ignorant in this matter than a newbie : I'm a user...

    I run Kubuntu 16.04 on a VM / VirtualBox hosted on Linux Mint17.
    I've installed an appli so called "Makerware" on it .
    Makerware needs Qt5 to run, and not any earlier version than ubuntu, 16.04 this is why I choose Kubuntu. Installation ran fine.

    I could run my appli once, but when I launched it for the second time, I got this message:
    Qt Code:
    1. gerard@gerard-VirtualBox:~$ makerware
    2. QSettings::value: Empty key passed
    3. QSettings::value: Empty key passed
    4. Illegal instruction (core dumped)
    5. gerard@gerard-VirtualBox:~$
    To copy to clipboard, switch view to plain text mode 

    The window popps up for 2 seconds and then disappear. Every time since.

    Would anyone here have an idea about that and how to solve it, I'll be very greatfull.

    Thanks in advance.

  2. #2
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    Default Re: Message "QSettings::value: Empty key passed" / Kubuntu

    Apparently Makerware has a bug where it is either asking to read or write something to the app's INI file (or the equivalent on linux) but it is passing an empty string as the key for the lookup. It then probably proceeds to try to use the value it has looked up without checking to see if it is NULL first. Crash, burn.

    I don't know how you fix it. You could look for an INI file (or ".something") file in your home or the program directory and delete it (after making a backup copy somewhere else), but if this is something that recurs every time you run the program it won't be a permanent fix.

    If you can't fix it, then you'll probably have to contact the authors of Makerware to report the bug.
    <=== The Great Pumpkin says ===>
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