Installation and Deployment

@JosephTLyons If you used the installed for Qt 4.2 then it probably exists in a single directory. So just like anything else on OSX you can just delete that directory and should be all uninstalled. If there is a dir outside the /Applications directory you may need to clean that up too. Sorry not 100% sure here since all my OSX Qt installs were built from source so I don't know how the installer works on OSX. On Linux it's a single directory. Anyway, once /Applications/Qt* is deleted you should be ready to do the install from Qt 5.11. Qt4 and 5 rarely play nice together in my opinion so a nice clean install would be a good idea. You can make them work on the same system but in my experience on these forums people mix their dylibs all the time and get weird behavior, crashes, failures to load, etc. So if you want them both for some reason just make sure they stay separate.

I can't imagine that would make any difference. I redefine the folder to libs, so lib should be irrelevant. Also I am 100% sure I tried that anyway.

@Or-Hirshfeld This thread is a year old, lol. If you read my answers to his questions you'll get the answer for yours as well. TLDR: you are mixing 2 versions of Qt.

Update of Qt version ? Update of OpenSSL ?

You need a compiler, no doubt about it. However the screenshot shows you have VS2015 installed, while the kit name from the first post suggest you're using a Qt version built for VS2013. This is not a possible and valid combination with MS's compiler, the versions should match. So you need to reconfigure the kit (possibly download a matching Qt version) so the compilers match. Refer to the QtCreator documentation for more information on the matter.

I have followed this procedure, however, i get the same error. I dont know but may be the problem in the car driving simulator software i am using. Do you have any alternative solutions? Thanks for your help and time.

Hi, Can any guide me on this

@jay_s said in Generating debug symbols (pdb) for release: So I did a 'jom clean' and reconfigure without that option just a hint: if you the configuration changes you should execute the dist-clean make target. But once again, only the debug DLL pdbs are generated in qtbase/lib Why do you need pdb files for the executables? Beside that you can also specifiy MSVC linker options via an environment variable (similar for the compiler).

Hello, thank you to all. Now it works as I wanted. Davidino

@JamesTiberiusKirk if your issue is solved, please don't forget to mark your post as such. Thanks.

@jsulm I'm working as root because if I do not I have this warning : "For the installer to work correctly, the executable needs to be run either as root via sudo or SUID (preferred)". [image: 6047bf59-c7b5-4540-a40e-228cf727b568.png] I'm new in Qt world, maybe I missed something obvious.

@MhM93 said in Is there any way to solve this?: I have friendlyARM board. it based on ubuntu. root@NanoPi2-Fire:~# uname -a Linux NanoPi2-Fire 3.4.39-s5p4418 #1 SMP PREEMPT Mon Oct 16 11:23:56 HKT 2017 armv7l armv7l armv7l GNU/Linux the latest qt for this I used is Qt4.8.6 and mach with that compiler(arm-cortex9-linux-gnueabi-4.9.3) I should download qt5.10 source code and compile it with this compiler? OK, I've never used that board. If Qt 4.8.6 is not enough for you (understandable, as that is extremely old) then yes, download Qt 5.10 and cross-compile. The guide I posted above should help (but it probably won't work without some tweaks).

@exit8 said in no examples in Linux Mint 18: kept clicking Next When installing something you should not just click Next all the time without checking what you're actually doing. No need for offline installer, simply use online installer and make sure you selected a Qt version to install. The installer can't know what you want to install, it is your job to tell it what you want.

Hi, It depends on what module you need for your development. However a quick search in https://packages.ubuntu.com with Qt dev as key words should give you some ideas about what is available.

I tried the maintenance tool but it didn't work, i think i have to reinstall Qt Creator. I didn't know about the tool, i learn something at least, thanks for your Help. Aloïs

Based on my own experience, you might as well use the offline installer. You still have to download.

@BeefTaco, I just remembered that there is another patch in the pipeline: https://codereview.qt-project.org/#/c/227744 I'd recommend you to try a snapshot one day after this patch has been merged. If your problem then still exists, you should create a new bug report.

Thanks !