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Installation and Deployment

Your Qt just doesn't want to build? Your compiler can't find the libs? Here's where you find comfort and understanding. And help.
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  • problem /usr/bin/ld: cannot find -lGL

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    J
    pffff i solved but is a hard problem i use the comand: sudo apt-get install libc6:i386 libgl1-mesa-dri-lts-vivid:i386 libgl1-mesa-glx-lts-vivid:i386 but the problem continues, then i use: sudo apt-get install libc6:i386 libgl1-mesa-dri-lts-vivid:i386 libgl1-mesa-glx-lts-vivid:i386 and now it works Now it is not necessary use: sudo apt-get install libglu1-mesa-dev -y (https://wiki.qt.io/Install_Qt_5_on_Ubuntu) thank for help :)
  • Install Qt Charts 2.0

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    S
    Thanks, that was a really nice link.
  • Using update-alternatives when deploying two versions of Qt on OpenSuse Linux

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    U
    @jsulm good idea, thanks!
  • The application failed to start

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    the_T
    Looks like Harbour
  • Where is the source code for all Qt?

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    JKSHJ
    @jdent said: @JKSH One question: is there source code for Qt Creator and the other binaries? Where? Yes. All of the Qt Project's source code can be found at http://code.qt.io/. The code for Qt Creator specifically is at http://code.qt.io/cgit/qt-creator/qt-creator.git/tree/
  • [SOLVED] /usr/bin/ld: cannot find -lGL

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    SGaistS
    Hi and welcome to devnet, libgl1-mesa-dev should be the right package.
  • -1 Votes
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    J
    If you want to use the Visual Studio add-in for Visual Studio 2015 I recommend using the Qt5Package extension found in the VS Extension Gallery. It's pretty much identicle to the official one and works very well. But if you want to use the pre-built Qt packages, you'll have to use the VS2013 (or older) compiler with the VS2015 IDE. The other choice is to just build Qt with VS2015, which is what I ended up doing.
  • QT 5.5 with openCV

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    O
    Yes you are right Charby. Well actually Cmake was not able to recognize the path although I have gave them properly. But if one manually executes qtmake.exe file and then includes WITH_QT option in Cmake, Cmake starts to recognize. Thanks again!
  • LINK2019: external symbol link

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    CharbyC
    I am not a windows user, so I am wild guessing here...What we know is that it lacks the definition of GenerateKey method of Tachymeter. Are you sure Tachymeter class is part of user32.lib ? You can check if the function signature is correct. It might also be a precompiled header cache issue, did you already try to clean and rebuild ?
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    @jsulm It has no business with g++. g++ is installed, and even though not, I have clang++ still.
  • Deployment Issue: Qt5Core.dll and Qt5Cored.dll

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    X
    Got it! I installed the "Dependency Walker" [1] application to inspect my binaries, starting by my .exe file. No reference to Qt5Cored.dll, but when I opened the quazip.dll file, it is listed! I recompiled Quazip, using this qmake line: qmake -config release "LIBS+=C:\extralibs\zlib1.dll" "PREFIX=C:\Quazip" And now, the problem is solved! Thank your for the dependencies hint! :) [1] : http://www.dependencywalker.com/
  • Powershell for testing Qt-app

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    I
    @SGaist Hi, friend) I search freeware soft)
  • No rule to make target

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    collycrkC
    @collycrk Sorry for the quick draw. While I was waiting for an answer to this error I, in release mode, ran a clean all and then ran build project. And everything worked as expected. This post is solved.
  • Debugger Error (ld) Linux Mint

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    M
    @jsulm wow, thanks dude. thought its a other problem. anyways same package for linux mint ;)
  • Compilation setup for correctly handling typed accented characters

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    S
    I could finally find that the cause of the issue are the 'platforminputcontexts' plugins. It seems that the even if my application didn't contain them, the precompiled Qt libraries could load and use some system plugins.
  • QT Creator 3.6 and QT creator 5.5 sdk

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    L
    Hmm, It did seem to come out that way , even tho I did it backwards so I could include the SDK .
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  • How to built qt as ReleaseWithDebugInfo

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    SGaistS
    Because there are some additional information to link the library to its corresponding debugging symbol. You have here A pretty interesting article on the subject.
  • This topic is deleted!

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  • Problem to test APP directly to device...

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    SGaistS
    Hi, What do you mean by "nothing happens` Don't you have any error message ?