hjed's profile - activity

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2014-11-24 05:47:18 -0500	received badge	● Famous Question (source)
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2014-04-19 02:53:02 -0500	commented answer	Segfault whilst reading message Thanks, this is a very good fix for the problem
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2014-04-18 19:41:44 -0500	asked a question	Segfault whilst reading message Hi we've been writting some code to subscribe to the /joint_states topic produced by the husky simulator. However we found that even though all the arrays in /joint_states should be the same length, we are getting an empty array for velocity at random intervals. Which causes a seg fault as there appears to be no way to detect it. (checking if msg->velocity == NULL won't compile). So two questions, is there a way to stop these invalid messages? And if there isn't what is the best way to detect the empty array (gdb says its a boost shared vector). Thanks, Harry
2014-03-13 19:11:46 -0500	asked a question	roscd, rosdepends: No such package/stack 'beginner_tutorials' Hi I am new to ROS and was following the beginner tutorials, however when I get to the "rospack depends1 beginner_tutorials" line I get the error "No such package/stack 'beginner_tutorials" This same error occurs when I try roscd. After googling this problem everyone seems to have solved it by running "source ~/catkin_ws/devel/setup.bash" however this does not resolve the problem for me. Thanks in advance for any help.