How to Install Qt 6 on Ubuntu

If you are a developer looking to install Qt 6 on your Ubuntu system, you have come to the right place. Qt is a popular cross-platform application framework that is widely used for developing graphical user interfaces.

Step 1: Update Your System

Before installing Qt 6, it is recommended to update your Ubuntu system to ensure that you have the latest software packages. You can do this by running the following commands in your terminal:

sudo apt update
sudo apt upgrade

Step 2: Install Dependencies

Next, you will need to install some dependencies that are required for Qt 6. You can do this by running the following command in your terminal:

sudo apt install build-essential libgl1-mesa-dev libxkbcommon-x11-dev libnss3-dev

Step 3: Download Qt 6

Now, you can download the Qt 6 installer from the Qt website. Go to the Qt download page and select the open-source version of Qt 6 for Linux.

Step 4: Run the Installer

Once the installer has been downloaded, navigate to the directory where it is located and run the following command in your terminal:

chmod +x qt-installer-linux-*.run
./qt-installer-linux-*.run

Follow the on-screen instructions to complete the installation process. You can choose the installation path and select the components you want to install.

Step 5: Set Up Qt Environment Variables

After the installation is complete, you will need to set up the Qt environment variables. Edit your .bashrc file by running the following command:

nano ~/.bashrc

Add the following line at the end of the file:

export PATH=$HOME/Qt/6.0.0/gcc_64/bin:$PATH

Save the file and reload your .bashrc file by running the following command:

source ~/.bashrc

Step 6: Verify the Installation

To verify that Qt 6 has been successfully installed, run the following command in your terminal:

qmake --version

If you see the version information displayed, then Qt 6 has been installed successfully on your Ubuntu system.

That’s it! You have now successfully installed Qt 6 on Ubuntu and are ready to start developing graphical applications with Qt.