Webupd8team/atom/ubuntu Xenial Inrelease Reading Package Lists Error
One of the several ways of installing software in Ubuntu is by using PPA or adding third-party repositories. A few magical lines give you easy access to a software or its newer version that is non bachelor by default in Ubuntu.
All thing looks well and good until you get habitual of calculation additional third-party repositories and i day, you see an error like this while updating Ubuntu:
Due east: The repository 'http://ppa.launchpad.cyberspace/numix/ppa/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled past default.
N: Run into apt-secure(8) manpage for repository creation and user configuration details.
In this tutorial for Ubuntu beginners, I'll explain what does this fault mean, why do you come across it and what can you practise to handle this fault?
Understanding "Repository does not take a release file" error
Let'southward become step by footstep here. The error message is:
E: The repository 'http://ppa.launchpad.net/numix/ppa/ubuntu focal release' does non have a release file
The important part of this error message is "focal release".
You probably already know that each Ubuntu release has a codename. For Ubuntu 20.04, the codename is Focal Fossa. The "focal" in the mistake message indicates Focal Fossa which is Ubuntu 20.04.
The error is basically telling y'all that though you take added a tertiary-party repository to your system's sources list, this new repository is not available for your electric current Ubuntu version.
Why so? Because probably you lot are using a new version of Ubuntu and the developer has non made the software available for this new version.
At this point, I highly recommend reading my detailed guides on PPA and Ubuntu repositories. These two articles will give you a ameliorate, in-depth knowledge of the topic. Trust me, yous won't exist disappointed.
How to know if the PPA/tertiary party is available for your Ubuntu version [Optional]
First you should check your Ubuntu version and its codename using 'lsb_release -a' command:
[electronic mail protected]:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu twenty.04 LTS Release: xx.04 Codename: focal As yous tin see, the codename it shows is focal. At present the next thing you can do is to go to the website of the software in question.
This could be the tricky part but yous can figure it out with some patience and effort.
In the example hither, the mistake complained nearly http://ppa.launchpad.net/numix/ppa/ubuntu. Information technology is a PPA repository and you may easily notice its webpage. How, you may inquire.
Use Google or a Google alternative search engine like Duck Duck Get and search for "ppa numix". This should requite you the first result from launchpad.internet which is the website used for hosting PPA related code.
On the webpage of the PPA, you can go to the "Overview of published packages" and filter it past the codename of your Ubuntu version:
For non-PPA third-political party repository, you'll have to cheque of the official website of the software and see if the repository is available for your Ubuntu version or non.
What to do if the repository is not available for your Ubuntu version
In case when the repository in question is not available for your Ubuntu version, hither's what you tin can exercise:
- Delete the troublesome repository from your list of repository so that you don't encounter the error every fourth dimension you run the update.
- Get the software from another source (if information technology is possible).
To delete the troublesome repository, start Software & Updates tool:
Get to the Other Software tab and look for the repository in question. Highlight it so click on Remove button to delete it from your system.
This will delete the PPA or the repository in question.
Side by side stride is to get the software from some other source and that'south totally subjective. In some cases, you can still download the DEB file from the PPA website and use the software (I have explained the steps in the PPA guide).
Alternatively, you can check the projection's website if there is a Snap/Flatpak or Python version of the software bachelor.
Source: https://itsfoss.com/repository-does-not-have-release-file-error-ubuntu/
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