Travis build errors

[Dahua]

I have been seeing these errors for several days (over all packages).

Setting up icedtea-7-jre-jamvm (7u25-2.3.10-1ubuntu0.12.04.2) ...
Setting up openjdk-6-jdk (6b27-1.12.6-1ubuntu0.12.04.2) ...
Setting up chromium-codecs-ffmpeg (28.0.1500.71-0ubuntu1.12.04.1) ...
Setting up chromium-browser (28.0.1500.71-0ubuntu1.12.04.1) ...
Setting up chromium-browser-l10n (28.0.1500.71-0ubuntu1.12.04.1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
Errors were encountered while processing:
 procps
 udev
 couchdb-bin
 couchdb
 xserver-xorg-core
 initramfs-tools
E: Sub-process /usr/bin/dpkg returned an error code (1)
The command "sudo apt-get upgrade -y" failed and exited with 100 during before_install.

[Elliot Saba]

Looks like something to report to the Travis-ci issue tracker if it's happening consistently.  Looks to me like there's been an update in the repositories that the Travis workers pull their packages from, and the VM images haven't been updated to incorporate those changes yet.  It might be prudent to wait 24 hours after these errors started appearing before reporting, as it might just go away once they update their VM image.

-E

[Dahua]

This has persisted for at least two days. I will continue to wait and see.

- Dahua

[Elliot Saba]

If it's been going on for two days, I would post something.  I took a quick look on the Travis issue tracker and didn't see anything matching what you're experiencing, so I think it's a safe bet that they'd be interested in hearing.

[Avik Sengupta]

Hi Dahua,

While the errors are not good and shouldn't happen, one point to note is that originally the example from which we all created the travis script had an `apt-get upgrade` . This is actually no longer required, and  only an `apt-get update` followed by a `apt-get install libprce3-dev julia` is necessary. For example, see https://github.com/JuliaLang/ZMQ.jl/blob/master/.travis.yml and https://travis-ci.org/JuliaLang/ZMQ.jl

Once you get rid of the `apt-get upgrade`, in addition to not hitting this bug, the run will be significantly faster, since it wont be trying to download the java installers from oracle, for one.

Regards
-
Avik

[Carlo Baldassi]

Miles reported this to Travis issue tracker, see https://github.com/JuliaOpt/GLPK.jl/issues/13 and link therein. Basically they advise against doing apt-get upgrade. I'm going to test Avik's suggestion on GLPK now.

[Dahua]

Avik,

Thanks for the suggestion. This works.

- Dahua