[ros-release] collada error during apt-get dist-upgrade

[Austin Hendrix]

This appears to be happening because the previous version of 
collada-dom-dev depended on collada-dom2.4-dp-dev, and the upgraded 
version of collada-dom-dev depends on collada-dom2.4-sp-dev.

Why was this dependency changed, and what implications does that have 
for downstream packages? I assume sp and dp stand for single and double 
precision, and the differences there can be pretty significant in 
certain applications.

-Austin

On 12/24/2015 08:17 AM, Austin Hendrix via ros-release wrote:
>
> Thanks for the link!
>
> I have family obligations today but I will try to dig through my logs 
> and figure out why it's trying to install the sp-dev version during 
> dist-upgrade.
>
> -Austin
>
> On December 24, 2015 11:13:57 AM Tully Foote via ros-release 
> <ros-release at lists.ros.org> wrote:
>
>> The issue with them properly colliding is ticketed. But if Austin was 
>> only doing an upgrade, it should not be switching. We cannot have 
>> dependencies on both the single precision and double precision 
>> versions. We need to find out why the single precision version is 
>> being installed on an upgrade and avoid that.
>>
>> Tully
>>
>>
>>
>> On Thu, Dec 24, 2015 at 7:30 AM, G.A. vd. Hoorn - 3ME via ros-release 
>> <ros-release at lists.ros.org <mailto:ros-release at lists.ros.org>> wrote:
>>
>>     On 24/12/15 16:26, Austin Hendrix via ros-release wrote:
>>
>>         It looks like the new collada packages that were pulled in
>>         recently are
>>         causing upgrade problems.
>>
>>         I did an apt-get dist-upgrade on my system today, and it
>>         looks like
>>         there's a collision between collada-dom2.4-sp-dev and
>>         collada-dom2.4-dp-dev, and apt wants to install both at the
>>         same time:
>>
>>         $ sudo apt-get install -f
>>         Reading package lists... Done
>>         Building dependency tree
>>         Reading state information... Done
>>         Correcting dependencies... Done
>>         The following extra packages will be installed:
>>            collada-dom2.4-sp-dev
>>         The following NEW packages will be installed:
>>            collada-dom2.4-sp-dev
>>         0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
>>         47 not fully installed or removed.
>>         Need to get 0 B/206 kB of archives.
>>         After this operation, 5,285 kB of additional disk space will
>>         be used.
>>         Do you want to continue? [Y/n]
>>         (Reading database ... 333408 files and directories currently
>>         installed.)
>>         Preparing to unpack
>>         .../collada-dom2.4-sp-dev_2.4.4.1-ubuntu1~trusty1_amd64.deb ...
>>         Unpacking collada-dom2.4-sp-dev (2.4.4.1-ubuntu1~trusty1) ...
>>         dpkg: error processing archive
>>         /var/cache/apt/archives/collada-dom2.4-sp-dev_2.4.4.1-ubuntu1~trusty1_amd64.deb
>>         (--unpack):
>>           trying to overwrite
>>         '/usr/lib/cmake/collada_dom-2.4/collada_dom-config.cmake',
>>         which is also
>>         in package collada-dom2.4-dp-dev 2.4.4.0-ubuntu1~trusty1
>>         dpkg-deb: error: subprocess paste was killed by signal
>>         (Broken pipe)
>>         Errors were encountered while processing:
>>         /var/cache/apt/archives/collada-dom2.4-sp-dev_2.4.4.1-ubuntu1~trusty1_amd64.deb
>>         E: Sub-process /usr/bin/dpkg returned an error code (1)
>>
>>
>>         Thoughts? Known workarounds?
>>
>>
>>     This is a 'known' issue, see [1] and the linked issues in the
>>     answer. The packages have been fixed and are waiting for the next
>>     sync.
>>
>>
>>         Is there a known reason why apt would want to install the sp
>>         and dp
>>         versions at the same time? Up until now I think I've only had
>>         the dp
>>         version installed.
>>
>>         If the sp and dp versions aren't supposed to be installed at
>>         the same
>>         time, can the maintainer please add a Conflicts: to the
>>         package header?
>>
>>
>>
>>     Gijs
>>
>>     [1]
>>     http://answers.ros.org/question/222892/collada-dom24-sp-dev-causes-dist-upgrade-to-fail-on-ubuntu-1404/
>>
>>
>>
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