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"error: undefined symbol: _ZdlPvm, version Qt_5"



  • Hello,
    Before i start laying my problem i want just to point out that i'm new with Linux.

    System info :

    OS : Ubuntu 20.04

    OS type : 64 bit

    Gnome version : 3.36.2

    Qt version :
    qtchooser -l
    4
    5
    default
    qt4-x86_64-linux-gnu
    qt4
    qt5-x86_64-linux-gnu

    qt5

    In an attempt to make a robotics simulation, i've been using Coppeliasim . The program have been running fine for me for a while when i was using Ubuntu 18.04. But then for some compatibility issues between my computer and ubuntu 18.04 and the multiple bugs i've decided to upgrade to ubuntu 20.04. When i try to launch this simulation software i get stuck with this error message:

    /coppeliaSim ./coppeliaSim: symbol lookup error: ./coppeliaSim: undefined symbol: _ZdlPvm, version Qt_5

    The issue appears to be a compatibility issue with Qt_5 but i dont know how to fix it.
    I'd appreciate it if anyone could offer me assistance in solving this.
    Thank you for your time.



  • @MoutaENSTA
    You have not explained: are you running the executable of a program which was compiled under 18.04, and you're just trying to run that as-is under 20.04? Or, do you mean you have sources and recompiled under 20.04?

    Believe it or not, you can actually Google for undefined symbol: _ZdlPvm and get lots of hits. You need to look at those, you may be talking about a compilation/linking/gcc version issue.



  • @JonB

    @JonB said in "error: undefined symbol: _ZdlPvm, version Qt_5":

    @MoutaENSTA
    You have not explained: are you running the executable of a program which was compiled under 18.04, and you're just trying to run that as-is under 20.04? Or, do you mean you have sources and recompiled under 20.04?

    Yes the program used to work fine under 18.04, and when i changed to 20.04 and used the new version of this program it gave me this error when launching. Other people did not have the same issue with the new version so i can't say that it is a bug. The issue must be from some incompatibility between Qt_5 in my computer and the one that runs with Coppeliasim, but i don't know in what way as this is all new to me. I hardly know what Qt_5 is for except that it is an IDE.

    Believe it or not, you can actually Google for undefined symbol: _ZdlPvm and get lots of hits. You need to look at those, you may be talking about a compilation/linking/gcc version issue.

    I tried to google this error but it didnt seem to be something related to my issue as most people face this when writting a program but for me i'm just trying to launch a program .. if that makes sense.
    Anyway thank for your time, i will try to dig deeper and solve this issue.


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