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Error in tutorial creating a diagnostic analyzer (in python) [closed]

asked 2014-07-07 04:37:28 -0500

Moda gravatar image

updated 2014-07-16 02:18:47 -0500

Everything works well until the last part Testing Analyzer.

I have this error : FAILURE: Test node [diagnostic_aggregator/analyzer_loader] does not exist or is not executable. I can't understand my mistake. Thank you.

Edit 1 : I can't reopen this subject (I don't have enough point for) , but it seems that there is an issues in python, try to read the comment, Thank you

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Closed for the following reason the question is answered, right answer was accepted by Moda
close date 2014-07-10 03:31:28.133016


did you do rosmake --pre-clean <package_name> ?

sai gravatar image sai  ( 2014-07-07 04:56:20 -0500 )edit

It doesn't work I still have the same error

Moda gravatar image Moda  ( 2014-07-07 06:11:06 -0500 )edit

did you do rosdep install <package name=""> ? and then roscd takes you to the package..?

sai gravatar image sai  ( 2014-07-07 06:19:01 -0500 )edit

roscd takes me to another folder : devel So what is the issue?

Moda gravatar image Moda  ( 2014-07-07 06:45:26 -0500 )edit

roscd <package name=""> should take you to the package you are using

sai gravatar image sai  ( 2014-07-07 07:02:39 -0500 )edit

So what can I do? I have just deleted everythink and redo the tutorials but I still have the same error

Moda gravatar image Moda  ( 2014-07-07 07:43:59 -0500 )edit

I tried on my PC running ubuntu 12.04 and fuerte, rosrun diagnostic_aggregator anlyzer_loader runs some program and that means that the executable exists for me. I am not sure what is causing you the problem that the `executable does not exist`

sai gravatar image sai  ( 2014-07-07 08:13:08 -0500 )edit

I am using groovy, does it change anythink?

Moda gravatar image Moda  ( 2014-07-07 08:14:58 -0500 )edit

1 Answer

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answered 2014-07-09 11:12:24 -0500

ahendrix gravatar image

updated 2014-07-10 01:58:53 -0500

I suspect you don't have the diagnostic_aggregator package installed.

If you've using ROS Groovy on Ubuntu, you can install it by running:

sudo apt-get install ros-groovy-diagnostic-aggregator


This is a bug in the diagnostics package; I've filed it here:

Until it's fixed, you should be able to complete the tutorial by checking the diagnostics package out from source and adding it to your catkin workspace.

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Sorry but I don't understand what I have to do. can you be more specific please? Thank you

Moda gravatar image Moda  ( 2014-07-10 02:47:47 -0500 )edit

In the src folder of your catkin workspace, do

git clone
and then rebuild your workspace.

ahendrix gravatar image ahendrix  ( 2014-07-10 03:07:35 -0500 )edit

It works!!!! Thank you very much!

Moda gravatar image Moda  ( 2014-07-10 03:31:01 -0500 )edit

it doesn't work for me. Roscd diagnostic_updater takes me to a directory under install isolated which doesn't have python libraries in it. I cannot import the diagnostic_updater package in my python code. I have asked the question on my account.

goshawk gravatar image goshawk  ( 2014-07-14 12:18:34 -0500 )edit

I'm working in c++. If you can, try to work in c++

Moda gravatar image Moda  ( 2014-07-15 02:12:09 -0500 )edit

I have some nodes or drivers that run in python. What do I do with them?

goshawk gravatar image goshawk  ( 2014-07-15 09:32:31 -0500 )edit

@goshawk - please ask a new question with more specifics.

ahendrix gravatar image ahendrix  ( 2014-07-16 14:09:10 -0500 )edit

I got it to work by adding packages from source.

goshawk gravatar image goshawk  ( 2014-07-16 18:48:07 -0500 )edit

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Asked: 2014-07-07 04:37:28 -0500

Seen: 638 times

Last updated: Jul 16 '14