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sarp
Asked: 2018-12-22 00:22:22 +0800 CST

404 error for CodeBlocks repository when I update my system [duplicate]

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I installed Code:Blocks on my Ubuntu 18.04 LTS. It works fine for now and I don't have any problem with it. But when I update my system using

sudo apt-get update && sudo apt-get upgrade -y

I get an error saying

Err:7 http://ppa.launchpad.net/damien-moore/codeblocks-stable/ubuntu bionic Release
  404  Not Found [IP: 91.189.95.83 80]
Reading package lists... Done                      
E: The repository 'http://ppa.launchpad.net/damien-moore/codeblocks-stable/ubuntu bionic Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Now, when I delete http://ppa.launchpad.net/damien-moore/codeblocks-stable/ubuntu bionic in the Software Center, Code:Blocks doesn't run the programs I've written. Having this error doesn't seem to harm anything but it is annoying.

How to solve this? I'm taking C courses in school, so I need some compiler in order to do my homeworks, but I am open to use something different. Thanks

package-management ppa code-blocks

2 Answers

  1. As was mentioned - the ppa:damien-moore/codeblocks-stable do not have packages for 18.04.

    But search on Launchpad for Code::Blocks related PPAs results in other PPA named ppa:pasgui/ppa.

    You can add it with

    sudo add-apt-repository ppa:pasgui/ppa
sudo apt-get install codeblocks

    and you will get CodeBlocks 17.12.

    Optionally you can install contrib plugins with

    sudo apt-get install codeblocks-contrib

    and enjoy the plugins.

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  2. That PPA appears to be for older versions of Ubuntu that don't include a modern version of the codeblocks package:

    Notice it's for 16.04 versions of Ubuntu, which is why your modern (18.04 bionic) version cannot find files on that PPA. It doesn't make a difference though because Ubuntu Bionic contains Version: 16.01+dfsg-2.1 of codeblocks anyhow.

    If you want to compile C code on Ubuntu the easiest way to make sure you have the compiler and it's associated files is to install the build-essential package:

    sudo apt install build-essential

    You should now have the gcc and g++ commands for building C/C++ and other languages supported by it. Save this as hello.c

    #include <stdio.h>
int main() { printf("hello\n"); }

    Then compile it:

    gcc hello.c

    Then run it:

    ./a.out
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