Installing Ros-humble-desktop Libsdl2 Dependency Issue - Libsdl2-2.0-0 (= 2.0.20+dfsg-2build1) But 2.0.20+dfsg-2ubuntu1.22.04.1 Is To Be Installed
**Installing ros-humble-desktop libsdl2 dependency issue - libsdl2-2.0-0 (= 2.0.20+dfsg-2build1) but 2.0.20+dfsg-2ubuntu1.22.04.1 is to be installed**
Installing ROS (Robot Operating System) on Ubuntu can be a complex process, especially when dealing with dependencies. In this article, we will discuss a common issue that arises when trying to install the ros-humble-desktop package on Ubuntu 22.04. The issue is related to the libsdl2 dependency, which is required by the ros-humble-desktop package.
Q: What is the ros-humble-desktop package?
A: The ros-humble-desktop package is a collection of ROS packages that provide a desktop environment for robotics development. It includes tools for building, running, and debugging ROS applications.
Q: What is the issue with the libsdl2 dependency?
A: The issue arises when the ros-humble-desktop package tries to install the libsdl2 dependency. The package manager (APT) is unable to find the exact version of libsdl2 that is required by the ros-humble-desktop package. Instead, it tries to install a different version of libsdl2 that is available in the Ubuntu repositories.
Q: What is the exact error message?
A: The exact error message is:
$ sudo apt install ros-humble-...
...
libsdl2-2.0-0 (= 2.0.20+dfsg-2build1) but 2.0.20+dfsg-2ubuntu1.22.04.1 is to be installed
Q: What does the error message mean?
A: The error message indicates that the ros-humble-desktop package requires version 2.0.20+dfsg-2build1 of libsdl2, but the package manager is trying to install version 2.0.20+dfsg-2ubuntu1.22.04.1 instead.
Q: How to resolve the issue?
A: To resolve the issue, you need to install the exact version of libsdl2 that is required by the ros-humble-desktop package. You can do this by adding the following line to your sources.list file:
deb http://archive.ubuntu.com/ubuntu jammy universe
Then, run the following command to update the package list:
sudo apt update
Finally, install the ros-humble-desktop package again:
sudo apt install ros-humble-desktop
Q: What if I don't want to add the jammy repository?
A: If you don't want to add the jammy repository, you can try to install the libsdl2 package from the universe repository on your Ubuntu 22.04 system. You can do this by running the following command:
sudo apt install libsdl2-2.0-0=2.0.20+dfsg-2build1
However, this may not work if the package is not available in the universe repository.
Q: What if I still encounter issues?
A: If you still encounter issues after trying the above solutions, you may need to try a different approach. One option is to install the ros-humble-desktop package from source. This will require you to download the source code and compile it manually.
In conclusion, the ros-humble-desktop package requires a specific version of libsdl2 to be installed. If the package manager is unable to find this version, you may encounter a dependency issue. To resolve this issue, you can add the jammy repository to your sources.list file or try to install the libsdl2 package from the universe repository on your Ubuntu 22.04 system. If you still encounter issues, you may need to try a different approach, such as installing the package from source.