Installation and Deployment

@raven-worx Using windeployqt fixed my issue, thank you very much! :)

@Paul-Colby Thanks for the info.

@JonB Thank you for the clarification! That makes a ton more sense. I was beginning to wonder why connecting to a database is seemingly giving so many people so much trouble! I've actually figured out a different way to solve the problem by using C++ MySQL Connector libraries provided by Oracle, and have gotten it working in my application! I will also try using the Qt and MySQL versions provided by my Ubuntu release and see how that goes.

Are you trying to build for WinRT ?

I don't think building the libraries in one machine and the tools in another one is a good idea. Maybe you could build it using a virtual machine. It will be faster than building on the device. After that, all you have to do is copy the files to the device.

Hi and welcome to devnet, How did you install the compilers ?

@magguz said in Build exe-file of Qt4-Project: @koahnig said in Build exe-file of Qt4-Project: @magguz When using in google "_ZNSt7__cxx1112basic_string" to search this pops up first https://gcc.gnu.org/ml/libstdc++/2015-03/msg00082.html I thought you are trying compile with MSVC, but that indicates clearly a MinGW library. The name of that dll is given that the post above. where can I find the dll? I found it myself. This dll was missing. Now it works fine! Thanks!

The "Topic Tools" button.

Hi, The website just got updated. Did it happened on the new version ?

@6thC @pderocco If you used the Offline Installer, then you are currently out of luck. (I didn't know this from the beginning) please see: https://bugreports.qt.io/browse/QTBUG-65321 some seem to have inserted the DLL by hand, others used the online installer.

Oh dear! Thanks! I must have missed that entry. Well, c'est la vie!

Thanks everyone. The link from aha_1980 does give me the latest, 64-bit download. I've sent qt a message indicating that the links on the linux download page need to be updated, and specify separate 32 and 64-bit downloads.

Hi and welcome to devnet, What kind of CI are you using ?

Hi and welcome to devnet, It means that the MySQL plugin wasn't build. As already suggested in the other topic, do you have the needed dependencies in the sysroot you use for cross-compilation ?

Hi @roboticsLabBiel Below link would be helpful Qt Online Installer

The solution that worked for me is to start "Developer Command Prompt for VS2017" (default) followed by running configure.bat in my case with following parameters: configure.bat -static -debug -platform win32-msvc -skip qtwebkit -prefix d:\qt ... it's still compiling at this moment so not sure yet if it will actually complete successfull yet... To me this means that the article : https://doc-snapshots.qt.io/qt5-dev/windows-building.html is not valid for all windows / visual studio versions or an incomplete description. Cheers, Gerhard

@samhoppo1 said in Error trying to install Qt on Windows: Though clearly something specific to the main profile/user account that I use, is the issue, but we don't know what. My experience (from helping others) is that once Windoze has corrupted your user profile --- for whatever reason and in whatever respect --- everything is kaput till you create another profile to use, and nothing on-line actually helps you properly recover the old profile. My 2 cents.

HI all, I am working on this 2-3 days. I will put the complete messages in Beaglebone Black terminal - It is as shown below. root@beaglebone:/home/debian# ./gdbserver :5555 LTC_Qt_App_Ver_0_02 Process LTC_Qt_App_Ver_0_02 created; pid = 24035 Listening on port 5555 Remote debugging from host 192.168.7.1 LTC_Qt_App_Ver_0_02: /usr/lib/arm-linux-gnueabihf/libQt5Qml.so.5: no version information available (required by LTC_Qt_App_Ver_0_02) LTC_Qt_App_Ver_0_02: /usr/lib/arm-linux-gnueabihf/libQt5Quick.so.5: no version information available (required by LTC_Qt_App_Ver_0_02) LTC_Qt_App_Ver_0_02: /usr/lib/arm-linux-gnueabihf/libQt5Gui.so.5: no version information available (required by LTC_Qt_App_Ver_0_02) LTC_Qt_App_Ver_0_02: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: no version information available (required by LTC_Qt_App_Ver_0_02) LTC_Qt_App_Ver_0_02: /usr/lib/arm-linux-gnueabihf/libQt5Widgets.so.5: no version information available (required by LTC_Qt_App_Ver_0_02) QML debugging is enabled. Only use this in a safe environment. No protocol specified QXcbConnection: Could not connect to display :0.0 Child terminated with signal = 0x6 (SIGABRT) GDBserver exiting root@beaglebone:/home/debian# A suggestion to solve this issue shall be very much appreciated. Thanks in advance for the help. Thanks & Regards, Sajeevan.K