Imré's profile - activity

Line 76 of the example says:

NodeConfiguration nodeConfiguration = NodeConfiguration.newPrivate();

That node can only make use of the loopback interface. Try:

NodeConfiguration nodeConfiguration = NodeConfiguration.newPublic(InetAddressFactory.newNonLoopback().getHostAddress().toString(), masterUri);

Thank you very much for your answer; it solved the issue.

I changed "NodeConfiguration nodeConfiguration = NodeConfiguration.newPrivate();"

to "NodeConfiguration nodeConfiguration = NodeConfiguration.newPublic(InetAddressFactory.newNonLoopback().getHostAddress().toString());"

I had to keep setting the masterUri seperately otherwise the app would crash on startup.

Hello,

I have installed the pubsub android tutorial on an android device and have it connect to an external roscore in order to have a talker/listener system between the android device and the computer where roscore runs.

When a Talker on the computer publishes data on the "chatter" ros topic, this data is seen on the android device in the rosTextView node.

However, when a Talker on the android device publishes data on the "chatter" ros topic, this data is seen in the rosTextView node of the android device but it dos not appear using "rostopic echo /chatter" on the computer. However, the data published by the talker should be seen on the computer also.

Would you know how to fix this?

I thank you in advance.

Imré

P.S. Here is the main source code of the application if it can be of any help: https://code.google.com/p/rosjava/source/browse/android_tutorial_pubsub/src/org/ros/android/tutorial/pubsub/MainActivity.java?spec=svn.android.10e4ad9b5746bead9376295165247bec770bdbc2&repo=android&name=10e4ad9b57&r=10e4ad9b5746bead9376295165247bec770bdbc2

I solved the problem. I deleted the index.html file. This corrected the error.

I need to upload ros android tutorials on an android device. I am doing this uploading through eclipse as it is the programming environment my android device is synchronized with. In order to do this, I followed the instructions on this page: http://answers.ros.org/question/2178/rosjavajar-missing-certain-packages

I succesfully downloaded the ros android packages from https://android.rosjava.googlecode.com/hg/

I have successfully applied rosmake to android_tutorial-camera, android_tutorial_image_transport, android_tutorial_pan_tilt_camera, android_tutorial_pubsub.

I have also successfully applied rosmake to android_gingerbread, as these tutorials require this package.

After having applied rosmake, I imported these tutorials and android_gingerbread as new projects inside eclipse.

However, I get an exception with the android_gingerbread project:

invalid resource directory name: /home/imre/workspace/android_gingerbread/res/index.html (AAPT problem)

Here is a definition of AAPT: "The Android Asset Packaging Tool (aapt) takes your application resource files, such as the AndroidManifest.xml file and the XML files for your Activities, and compiles them."

The problem seems to come from the content of the index.html file, which lists the following resources: drawable-hdpi, drawable-ldpi, drawable-mdpi, layout, values.

How is it possible to fix this issue with the index.html file of the resources of the android_gingerbread ros package?

I thank you in advance.

There are multiple problems:

1. You have to use ROS Electric, not Diamondback (should be resolved now)

2. https://rosjava.googlecode.com/hg/ is a Mercurial repository, not subversion, so you can't use svn or wget with it. The correct command is:

   hg clone https://rosjava.googlecode.com/hg/ rosjava_core

I removed the ~/.ros/rosjava folder and then applied "rosmake --threads=1 rosjava". This solved the problem.

Good evening,

I receive the following exception when trying to build rosjava:

/home/imre/ROS_DIR/rosjava_core/rosjava/src/main/java/org/ros/internal/node/RosoutLogger.java:59: package org.ros.message.rosgraph_msgs does not exist

Where can I download the package org.ros.message.rosgraph_msgs for rosjava?

I thank you in advance.

Here is my setup:

OS:

Ubuntu; Version 11.04 (natty); Kernel Linux 2.6.38-11-generic-pae; GNOME 2.32.1

Version of ROS:

At first, I had installed ROS Diamondback. And I had the error I am talking about in this question. Then I installed ROS Electric Emys in its place once it was released, but it was not due to my question. I still have the error with this version of ros.

Version of java:

java version "1.6.0_22"; OpenJDK Runtime Environment (IcedTea6 1.10.2) (6b22-1.10.2-0ubuntu1~11.04.1); OpenJDK Server VM (build 20.0-b11, mixed mode)

Version of Ant:

Apache Ant version 1.8.1 compiled on October 13 2010

Exact commands used to download rosjava:

At first I tried: imre@TK-421:~$ svn co https://rosjava.googlecode.com/hg/

svn: Le serveur a envoyé une valeur inattendue (405 Method Not Allowed) en réponse à la requête OPTIONS pour 'https://rosjava.googlecode.com/hg'

which means "The server has sent an unexpected value (405 Method Not Allowed) in answer to the request OPTIONS for 'https://rosjava.googlecode.com/hg'"

So instead I used: imre@TK-421:~$ wget -r -l 1000 --no-check-certificate https://rosjava.googlecode.com/hg/

Imré