ROS audio_common requires gstreamer but apt-get won't install it - CHATBOT

asked 2019-09-22 20:49:35 -0600

billy
1850 ●24 ●87 ●47

I'm attempting to install the Amazon LEX chatbot node from here: https://github.com/aws-robotics/lex-ros1

That node requires the ROS audio_common node from here: https://github.com/ros-drivers/audio_...

One of the audio_common CMAKE files requires gstreamer-1.0

find_package(PkgConfig)
pkg_check_modules(GST1.0 gstreamer-1.0 REQUIRED)

When I attempt to install gstreamer apt-get is instead referencing different versions of similar programs on my system;

b2@b2:~/catkin_ws$ sudo apt-get install gstreamer-1.0
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'libqtgstreamer-1.0-0' for regex 'gstreamer-1.0'
Note, selecting 'gir1.2-gstreamer-1.0' for regex 'gstreamer-1.0'
Note, selecting 'libqt5gstreamer-1.0-0' for regex 'gstreamer-1.0'
libqt5gstreamer-1.0-0 is already the newest version (1.2.0-3).
libqtgstreamer-1.0-0 is already the newest version (1.2.0-3).
gir1.2-gstreamer-1.0 is already the newest version (1.8.3-1~ubuntu0.1).
0 upgraded, 0 newly installed, 0 to remove and 39 not upgraded.

So I'm tempted to modify the CMAKE file to reference one of these other programs.

QUESTION: Are any of you familiar enough with the audio_common node to suggest which of the three programs should get referenced, or does it even matter? I'm willing to experiment but don't want to jackup my system by uninstalling those programs. Can I force install of gstreamer-1.0?

Environment: 64 bit Ubuntu 16-LTS, ROS LUNAR, Lenovo Thinkpad

answered 2019-09-23 02:56:18 -0600

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

updated 2019-09-24 02:36:12 -0600

All audio_common packages appear to state their dependencies correctly in their package manifests.

That leads to two questions:

do you need to build the audio_common packages from sources? This seems to suggest a simple apt install ros-lunar-audio-common should work
if you need to build from sources: have you ran the obligatory rosdep install --from-paths /your/catkin_ws/src -i? Refer to #q252478 for an example workflow.

As a general recommendation: always prefer to use apt on Ubuntu. Only build packages from source if you have to.

Edit:

Forgive the naivete but how do I know if there is a package I can install through apt?

I believe #q320046 should clear this up.

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Thank you gvdhoom. The apt install got me through that issue.

Forgive the naivete but how do I know if there is a package I can install through apt? I followed your link above to the repositories and found the lex node listed but unable to use apt for that one. It's unclear how I differentiate.

And thank you for the link to the workflow. I've bookmarked that page for reference. The rosdep command is new to me.

billy ( 2019-09-23 23:05:55 -0600 )edit

@gvdhorn, this effort ended up bringing me to this other question that you helped so much with : https://answers.ros.org/question/3341...

Well after converting to kinetic and testing the native audio_common I found myself stuck on a known issue with released version of audio_common: https://github.com/ros-drivers/audio_...

So I had to install a patched version of audio_common from source after all. And I ended back here with the exact same issue but this time on Kinetic. Your comment about rosdep install --from-paths /your/catkin_ws/src -i fixed it up for me though. So your answer actually took care of two issues. Thank you.

billy ( 2019-10-04 23:07:19 -0600 )edit

No problem.

Glad you got things to work.

gvdhoorn ( 2019-10-05 06:12:04 -0600 )edit

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