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Apt Install Ros Kinetic Problem after recent update

asked 2019-08-14 15:35:37 -0500

Mehdi2277 gravatar image

updated 2019-08-14 18:01:43 -0500

jayess gravatar image

Hi, I'm having issue installing ros after this update. I'm on ubuntu 16.04.

When I try to apt install ros-kinetic-ros-core after using apt update it attempts to fetch python-rospkg 1.1.9 and python-rospkg-modules 1.1.9. Neither of those exist after this update so it just gives me an error about not being able to find them. I'd expect apt update to cause it to search for 1.1.10, but that's not happening and I'm confused as to how to fix this. I have a file in my /etc/apt/sources.list.d for ros called ros-latest.list and it's contents are,

deb xenial main

The exact error message from apt is,

Ign:1 xenial/main i386 python-rospkg-modules all 1.1.9-1
Ign:2 xenial/main i386 python-rospkg all 1.1.9-100
Err:1 xenial/main i386 python-rospkg-modules all 1.1.9-1
  404  Not Found [IP: 2600:3404:200:237::2 80]
Err:2 xenial/main i386 python-rospkg all 1.1.9-100
  404  Not Found [IP: 2600:3404:200:237::2 80]
E: Failed to fetch  404  Not Found [IP: 2600:3404:200:237::2 80]

E: Failed to fetch  404  Not Found [IP: 2600:3404:200:237::2 80]

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
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answered 2019-08-14 16:05:56 -0500

tfoote gravatar image

1.1.10 is the current package in the repository. If your apt database is up to date you should see that.

Package: python-rospkg
Priority: optional
Section: python
Installed-Size: 17
Maintainer: Ken Conley <>
Architecture: all
Version: 1.1.10-100
Depends: python-yaml, python:any (<< 2.8), python:any (>= 2.7~), python-argparse, python-rospkg-modules (>= 1.1.10)
Conflicts: python3-rospkg
Filename: pool/main/p/python-rospkg/python-rospkg_1.1.10-100_all.deb
SHA512: 8a9630ab25dd080d72e229bb034dcea7697dfb3a2b95d95398437eb7c733b31528ba9f454115a0f20530dfc0d531f7a06d54c4defdf7bca0f68f0413989f9d66
Size: 2208
SHA256: df6ec77eb91901d8b8775cd1efd05c86a8b1d75a741d3814f643e13ab1b5e135
SHA1: 269efb678acedaba1a414a9c330ce6eacb8bdb3d
MD5sum: 47969a4120db2f9ef60ce24f628efea5
Description: ROS package library
         Library for retrieving information about ROS packages and stacks.

You should make sure to run apt-get update again. If you have any trouble after that please edit your question to show the output of apt-get update as well as apt-cache policy python-rospkg

Depending on your networking situation you may have proxies between you and the server that might be causing issues.

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I ended up resolving the issue by upgrading to 18.04, so I can't tell exactly what the original problem was.

Mehdi2277 gravatar image Mehdi2277  ( 2019-08-14 18:58:24 -0500 )edit

It could be that this is another manifestation of #q325039: apt not finding packages because of out-dated indices is one of the symptoms of not having the correct key installed.

gvdhoorn gravatar image gvdhoorn  ( 2019-08-19 04:55:35 -0500 )edit

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Asked: 2019-08-14 15:35:37 -0500

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Last updated: Aug 14 '19