Install Qt on Ubuntu

Question

Need to build simple GUI application  For this reason I decided to install Qt on my Ubuntu 16  I have downloaded open source Qt edition from theirs site  Got error while run   g ubuntu   Downloads    qt-unified-linux-x86-2 0 5-2-online run    qt-unified-linux-x86-2 0 5-2-online run  error while loading shared libraries  libX11 so 6  cannot open shared object file  No such file or directory   How to fix that

User · Accepted Answer

The ubuntu package name is qt5-default  not qt

User · Answer

Also take a look at awesome project aqtinstall https   github com miurahr aqtinstall   it can install any Qt version on Linux  Mac and Windows machines without any interaction   and GitHub Action that uses this tool  https   github com jurplel install-qt-action

User · Answer

Install Qt  sudo apt-get install build-essential  sudo apt-get install qtcreator  sudo apt-get install qt5-default   Install documentation and examples If Qt Creator is installed thanks to the Ubuntu Sofware Center or thanks to the synaptic package manager  documentation for Qt Creator is not installed  Hitting the F1 key will show you the following message    No documentation available   This can easily be solved by installing the Qt documentation   sudo apt-get install qt5-doc  sudo apt-get install qt5-doc-html qtbase5-doc-html  sudo apt-get install qtbase5-examples   Restart Qt Creator to make the documentation available   Error while loading shared libraries  Problem   radiusd  error while loading shared libraries  libfreeradius-radius-2 1 10 so  cannot open shared object file  No such file or directory  Reason   Actually  the libraries have been installed in a place where dynamic linker cannot find it   Solution   While this is not a guarantee but using the following command may help you solve the    cannot open shared object file    error   sudo  sbin ldconfig -v   http   www lucidarme me how-install-documentation-for-qt-creator   https   ubuntuforums org showthread php t 2199929  https   itsfoss com error-while-loading-shared-libraries   ModelSim-Altera error

User · Answer

In Ubuntu 18 04 the QtCreator examples and API docs missing  This is my way to solve this problem  should apply to almost every Ubuntu release   For QtCreator and Examples and API Docs   sudo apt install  apt-cache search 5-examples   grep qt   grep example   awk   print  1      xargs    sudo apt install  apt-cache search 5-doc   grep  Qt 5     awk   print  1     xargs   sudo apt-get install build-essential qtcreator qt5-default   If something is also missing  then   sudo apt install  apt-cache search qt   grep 5-   grep  qt   awk   print  1     xargs     Hope to be helpful   Also posted in Ask Ubuntu  https   askubuntu com questions 450983 ubuntu-14-04-qtcreator-qt5-examples-missing

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