ppa problem

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ppa problem

Graeme

I'm trying to install maxima ppa in Ubuntu in 18.04 in VirtualBox in windows 10.  Gunter from maxima thinks you can help ( I can't get octave to install either... ):

Gunter's email  ( starts with edited version of my ppa attempt, see below ) :

Reading package lists... Done                      
E: The repository 'http://ppa.launchpad.net/octave/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.

Then it isn't the thing I was afraid of: For a time Ubuntu used weak gpg
signatures and then started complaining if one still used them.
My guess what has happened is:

 - The system that produced this error message includes an ppa version
of octave
 - it was recently updated to bionic
 - and the Ubuntu nightly Build ppa was added.

Now it complains (in cryptical form, alas!) that there is no software
for Ubuntu bionic in the Octave ppa. So it cannot decide what to do.

The maintainer of the Octave ppa should be likely to be able to fix this
problem.

Kind regards,

    Gunter.
.
-------------------------------------------------------------------------

My ppa attempt:

graeme@graeme-VirtualBox:~$ sudo add-apt-repository ppa:maxima-developers/maxima-nightly
[sudo] password for graeme:
 Nightly builds of maxima, a free and powerful Computer Algebra System.

Maxima was compiled with 3 lisps:
 - If only maxima-sbcl is installed or if maxima is invoked as "maxima -l sbcl" maxima will quite fast. It will also be able to run on systems that don't have the lisp maxima was compiled with installed.
 - If only maxima-gcl is installed or if maxima is invoked as "maxima -l gcl" maxima might be faster or slower than the gcl build depending on the problem. One advantage of gcl is the fast bignum routines that are built into it. The gcl flavour will only work on systems the exact gcl build is installed on maxima was compiled with.
 - if maxima is invoked as "maxima -l clisp" or if maxima-clisp is the only flavour installed maxima is slow, but extremely memory-efficient. Maxima-clisp requires a similar clisp to that it was compiled with installed on the target system.

This nightly build is created automatically in the following way:
 - Every few hours launchpad mirrors the git repository from http://maxima.sourceforge.net to https://code.launchpad.net/~peterpall/maxima/+git/maxima.code.
 - If this repository has changed https://code.launchpad.net/~maxima-developers/+recipe/maxima-daily causes the Head of the master branch of the repository and the packaging information from its DebianPackaging branch passed to a build server which creates a virtual machine. This step fails with a "failed to upload" if the repository has changed, but the master branch hasn't.
 - Afterwards a build is started whose result ends up here.

There is no guarantee that the result of a nightly build works. As the developer team aims for stability, though, most of the time it is quite stable. Also the development team will be interested in the information that the nightly build shows errors, should that be the case.
 More info: https://launchpad.net/~maxima-developers/+archive/ubuntu/maxima-nightly
Press [ENTER] to continue or Ctrl-c to cancel adding it.

Hit:1 http://us.archive.ubuntu.com/ubuntu bionic InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease                           
Hit:3 http://security.ubuntu.com/ubuntu bionic-security InRelease                            
Hit:4 http://ppa.launchpad.net/alexlarsson/flatpak/ubuntu bionic InRelease                   
Hit:5 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease                              
Get:6 http://ppa.launchpad.net/maxima-developers/maxima-nightly/ubuntu bionic InRelease [15.9 kB] 
Ign:7 http://ppa.launchpad.net/octave/stable/ubuntu bionic InRelease         
Hit:8 http://ppa.launchpad.net/peterpall/wxmaxima-nightlies/ubuntu bionic InRelease
Err:9 http://ppa.launchpad.net/octave/stable/ubuntu bionic Release           
  404  Not Found [IP: 91.189.95.83 80]
Get:10 http://ppa.launchpad.net/maxima-developers/maxima-nightly/ubuntu bionic/main i386 Packages [1,496 B]
Get:11 http://ppa.launchpad.net/maxima-developers/maxima-nightly/ubuntu bionic/main amd64 Packages [1,492 B]
Get:12 http://ppa.launchpad.net/maxima-developers/maxima-nightly/ubuntu bionic/main Translation-en [1,124 B]
Reading package lists... Done                      
E: The repository 'http://ppa.launchpad.net/octave/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.




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Re: ppa problem

Mike Miller-4
On Wed, May 09, 2018 at 12:41:27 +0000, Graeme Paterson wrote:
> E: The repository 'http://ppa.launchpad.net/octave/stable/ubuntu bionic Release' does not have a Release file.

The error message means what it says, there is no bionic Release file.

What this actually means is that the PPA contains no packages for Ubuntu
bionic. Remove the PPA from your system and the error will go away.

    sudo apt-add-repository -r ppa:octave/stable

But I will go tick the box that says it contains packages for bionic and
see if that changes anything.

--
mike



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