Installation and Deployment

@hobbyProgrammer Hello I am the author of the QtDeployer utility. This utility was written specifically to solve the problems you are trying to solve. However, at the moment, the utility can create distributions only from the already created qt components. this means that you must: Prepare the qt framework assembly using a cross-platform compiler. Build your project using a cross-platform compiler with the qt framework created in the 1st step. Using cqtdeployer to collect all dependencies into one distribution. For the third step, only the cqtdeployer utility is suitable, because it is the only one that has its own ELF PE and QML parsers. In the process of developing my programs, I use a Linux-based server to create applications for Windows and Linux. You are not the first to try this way, so I’m thinking of writing an article on how to deploy applications on the same host for different platforms.

@Sekhar Please take a look at https://doc.qt.io/qt-5/linux-deployment.html But your issue could be different: did you cross compile Qt with EGLFS support?

@K-Str said in creating widgets with fixed size and position: I think this is solved now. Please mark as solved

Do you have an IT team that deals with your infrastructure ?

@vudangkhoa2906 update your NDK, preferable to the newest stable version

Became much to complicated, so I just put nfsserver on pi and mount / as sysroot. Way too many places to set solib-search-path" or "set sysroot"? just mounting the entire sd as an nfs mount to sysroot was a lot easier. On the display, the click check box and enter the DISPLAY did not work for me, I had to actually make an env value in Build Environment and place it there. DISPLAY localhost:10.0 there... It did not work for me in the run in terminal click to forward to this display... don't know if I am doing something wrong there or if this is bug.. but the correct place for me was in the Build Environment ...

Hi and welcome to devnet, Your for line is wrong. It should be: for (CVLIB, CVLIBS) { # Your code here } qmake's syntax is not the same as C++. You have to have the opening bracket on the same line as the test/loop/etc..

@kamui don't forget to use the topic tools to set this topic to solved :)

The problem is simple: you are trying to create the database in the same folder as your application. That won't work on mobile. It also won't work on desktop if you install the application in the system because usually they will be rightfully put in read-only places. You should use QStandardPaths to get a suitable folder for your application to write into.

@BK_Broiler If you don't need the tools then don't build them. Otherwise I guess you need to satisfy the requirements like CLang (QtCreator uses it for example).

@Adarsh_Kumar then please tell us more about your setup. which target? which toolchain did you install and where? have you setup Creator for cross compiling? what did you do? Regards

Looks like you're right. sudo apt list | grep qt5 revealed the qt5 version for the OS is 5.9.5, which would give QtQuick 2.9. I suspect there isn't a way to update the OS version without switching to Kubuntu. Thanks for your help!

Thanks for the input. On WIndows, when you run the Maintenance Tool you check off which compiler you want to use. The Maintenance Tool downloads that compiler. At the point this error happens I have seen the Maintenance Tool download the correct compiler to the Qt directory.

I don't know. Just installed all that things from mysql community server installer. That was really strange... I searched manually: deleted folder config.tests cleared files config.summary, config.opt, config.log, config.cache. Then I qmake include and lib from MYSQLSERVER8.0 folder... And that works... Now I'm connected with my mysql database...

@Dariusz said in WSL Qt Ubuntu?: how can I install Qt on Linux in shell? sudo apt install qt5-qmake Or use @benlau's excellent Qt silent installation scripts: https://github.com/benlau/qtci Or compile Qt yourself.

@mkre said in Android build issues with OpenSSL on 5.0/5.1: @sierdzio Is there a guide for either of these two solutions? Running into this issue now for an APK I'm trying to build for an Android 5.0/5.1 device that uses QNetworkRequest to download files from the internet. Option 2 (workaround) is described in the linkg @kviktor posted, just above your comment. As for compiling Qt statically, look in Qt docs and output of ./configure --help. Please remember license (LGPL, GPL) limitations when compiling statically.

Hi, The drivers are plugins so you need to also have the plugins deployed.