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2012-01-05 01:25:41 -0500	commented answer	ros master and android phone cannot connect That's why i think it's a communication problem with the rosmaster not specific to the tutorials. The image_transport tutorial isn't prompting to enter the master URI, it crashes before it gets to this point
2012-01-05 01:24:20 -0500	commented answer	ros master and android phone cannot connect Thank you for your answer. I can't run the android_tutorial_pubsub either, like the image_transport it crashes from the beginning without prompting anything. I tried it with roscore running in my desktop computer, listener in my desktop computer too but the apllication crashed anyway.
2012-01-02 02:52:34 -0500	commented answer	ros master and android phone cannot connect Greetings, thank you for your answer. I installed the application that you mentioned from the android market, but it gives me the following message : Cannot contact robot:org.ros.exception.ServiceNotFound . It throws the service not found exception it cannot communicating with the rosmaster either
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2012-01-01 14:29:16 -0500	asked a question	ros master and android phone cannot connect Greetings all, I'm trying to run the android image_transport tutorial on my android phone, but the application crashes from the start. There was no error when I run the rosmake on the package or when I exported it to my phone. It seems to me that the rosmaster on my computer and the phone can't communicate. I set ROS_IP to the computer (rosmaster) Ip and set ROS_MASTER_URI too. Roscore is running on the computer also. I don't know what I'm missing for the phone to detect the rosmaster running on the computer and connect to it so that the application doesn't crash from the start. Could you please help me figure it out Thank you for your help
2011-12-28 11:58:43 -0500	asked a question	can't get android image_transport working on android phone Greetings all, I am currently trying to make an android phone transmit a picture to a rosmaster pc both connected to the same wifi network. It seems to me that android_image_transport tutorial does that to some extend. Therefore I installed ros on my ubuntu 11.10, downloaded the tutorial code from the hg repository, run rosmake --thread=1 on it and got no errors, imported it in eclipse and got no errors on the project. At this point I exported it to an .apk packet to install it on my android phone. The installation goes well but the application crashes at starting point every time I try to run it. At the same time, I run roscore on the pc and set my ROS_MASTER_URI thanks to : export ROS_MASTER_URI=http://rim-Satellite-A200:11311/. I can't seem to figure out what is missing for the application to run, could you please help me figure it out Thanks in advance Rim
2011-12-23 11:58:26 -0500	answered a question	Talker issue on Android pubsub tutorial Greetings Imré, I have the same issue you had and I was wondering about how you did to set up the masterURI separately. Could you tell me how? Thank you for your help
2011-12-22 12:25:00 -0500	commented answer	source command not found Thanks for your help
2011-12-22 12:24:43 -0500	marked best answer	source command not found Hi, According to http://www.ros.org/wiki/ROS/Tutorials/InstallingandConfiguringROSEnvironment you are not supposed to edit the setup.sh file in the "/opt/ros/electric/" path but setup in your ros_workspace folder created by you. The idea behind setting up the workspace is to have the packages fetched by ros automatically. Once you download or create a package in this workspace in the future, the ros commands like roscd, rosmake, rosed etc would be able to lookup in this path. Once you setup the environment/workspace, your `echo $ROS_PACKAGE_PATH` would give the following output `/home/user/ros_workspace:/opt/ros/electric/stacks` You have to source this path to your ~/.bashrc file so that it gets picked up every time you run the terminal. Hope this helps, Karthik
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2011-12-14 07:23:15 -0500	commented answer	source command not found Thank you for answering that quickly. I set the setup.sh file back as it was (i changed only the first line so it was easy). You said that I have to setup setup.sh in ros_worspace, does that mean I have to create the setup.sh with the script provided in the website in ros_workspace?
2011-12-14 06:19:42 -0500	asked a question	source command not found Hello, I'm trying to install ros on my ubuntu 11.10 and get it work. I followed successfully the tutorial here http://www.ros.org/wiki/electric/Installation/Ubuntu and I'm attempting to the following one here : http://www.ros.org/wiki/ROS/Tutorials/InstallingandConfiguringROSEnvironment. According to the second instruction I went to setup.sh which is in /opt/ros/electric/ and modified it according to the script written in that page. But when I run source setup.sh, I get the error " /opt/ros/electric/setup.sh: 2: source: not found " .I tried to change #!/bin/sh by #!/bin/bash in the beginning of the setup.sh and ran bash /opt/ros/electric/setup.sh but I'm still getting the same error Thank you in advance for your help Rim Zahir