In case when the repository in question is not available for your Ubuntu version, here’s what you can do: What to do if the repository is not available for your Ubuntu version On the webpage of the PPA, you can go to the “Overview of published packages” and filter it by the codename of your Ubuntu version:įor non-PPA third-party repository, you’ll have to check of the official website of the software and see if the repository is available for your Ubuntu version or not. This should give you the first result from which is the website used for hosting PPA related code. Use Google or a Google alternative search engine like Duck Duck Go and search for “ppa numix”. It is a PPA repository and you may easily find its webpage. In the example here, the error complained about. This could be the tricky part but you can figure it out with some patience and effort. Now, the next thing you can do is go to the website of the software in question. How to know if the PPA/third party repo is available for your Ubuntu versionįirst, you should check your Ubuntu version and its codename using ‘lsb_release -a’ command: lsb_release -aĪs you can see, the codename it shows is focal. Why so? You are probably using a new version of Ubuntu and the developer has not made the software available for this new version.Īt this point, I highly recommend reading this in-depth guide to understand the concept of the repositories in Ubuntu. The error is basically telling you that though you have added a third-party repository to your system’s sources list, this new repository is not available for your current Ubuntu version. The “focal” in the error message indicates Focal Fossa which is Ubuntu 20.04. For Ubuntu 20.04, the codename is Focal Fossa. You probably already know that each Ubuntu release has a codename. The critical part of this error message is “ focal release”. The error message is:Į: The repository ‘ focal release’ does not have a release file In this tutorial for Ubuntu beginners, I’ll explain what does this error mean, why do you see it and what can you do to handle this error? Understanding “Repository does not have a release file” error N: See apt-secure(8) manpage for repository creation and user configuration details. N: Updating from such a repository can’t be done securely, and is therefore disabled by default. A few magical lines give you easy access to a software or its newer version that is not available by default in Ubuntu.Īll thing looks well and good until you get habitual of adding additional third-party repositories and one day, you see an error like this while updating Ubuntu:Į: The repository ‘ focal Release’ does not have a Release file. Snap Store is the best place you can install snaps.One of the several ways of installing software in Ubuntu is by using PPA or adding third-party repositories. Snapes could be run on all Linux distributions from a single build. Snaps are applications packaged with all their dependencies. Enabled snaps on Debian and install CMakeĪlso on Debian, you can use snaps to install CMake. Otherwise, check the steps again or send us the error you receive. Once you view the version, you can ensure that the installation is confirmed. If you wish, verify the process of installation of CMake using the command below: cmake -version makeįinally, to install CMake, type: sudo make install Processing of the make will take time, so do not exit the terminal window and let it reach 100% completion. So, run the make command in the terminal window. You will do this step when CMake is bootstrapped. Wait for a while to see CMake will be bootstrapped./bootstrap sudo apt remove -purge cmake hash -r How To uninstall CMake Using The Ubuntu SoftwareĪt this point, you can run the following command since you have reached the CMake directory. Note: If you have already installed CMake using Ubuntu package manager, use the command below to remove it. When you checked for the latest version, you can use the CLI too to work with your software’s code. Once the installation is completed, you can verify its installation and check the correctness of the installed version. Now, you can make it using the command below: makeĪnd to install it, type: sudo make install Next, use the following command to compile and install CMake./bootstrap To move to the extracted folder, run: cd cmake-3.15.2 When the file is downloaded, use the following command to extract it: tar -zxvf cmake-3.15.2.tar.gz The same version could be installed by running the command below: sudo apt update sudo apt upgrade sudo snap install cmake Download the source code from the Official CMake website, compile it and then install CMake through it. How to install CMake through the Ubuntu Command LineĪs we mentioned, you can install CMake through the command line.
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