The site is read-only. Please transition to use Robotics Stack Exchange
| ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
 | 1 | initial version |
Afaict, there's nothing really wrong, other than that your node(s) is (are) trying to contact a ROS master that isn't responding.
Are you starting one before trying to run your node(s)?
| | 2 | No.2 Revision |
Afaict, there's nothing really wrong, other than that your node(s) is (are) trying to contact a ROS master that isn't responding.
Are you starting one before trying to run your node(s)?
Edit:
How do I start a ROS Master?
Well, typically you'd use a roscore instance, but that would require a ROS installation. I'm not a rosjava expert, but it does include a pure Java master implementation afaik. It's just slightly less straightforward to run it.
The wiki/android/RosActivity tutorial has some info on how to add a Master Chooser to your application, but that seems like it's Android only (the chooser also allows you to start a new local master).
5 mins googling led me to this comment by Damon Kohler on how to create a minimal master in rosjava. Perhaps that is something you can use. It might be that this is no longer something you'd need to create yourself (ie: rosjava includes a stand-alone master already), but I can't find anything right now.
| | 3 | No.3 Revision |
Afaict, there's nothing really wrong, other than that your node(s) is (are) trying to contact a ROS master that isn't responding.
Are you starting one before trying to run your node(s)?
Edit:
How do I start a ROS Master?
Well, typically you'd use a roscore instance, but that would require a ROS installation. I'm not a rosjava expert, but it does include a pure Java master implementation afaik. It's just slightly less straightforward to run it.
The wiki/android/RosActivity tutorial has some info on how to add a Master Chooser to your application, but that seems like it's Android only (the chooser also allows you to start a new local master).
5 mins googling led me to this comment by Damon Kohler and this issue on how to create a minimal master in rosjava. Perhaps that is something you can use. It might be that this is no longer something you'd need to create yourself (ie: rosjava includes a stand-alone master already), but I can't find anything right now.
| | 4 | No.4 Revision |
Afaict, there's nothing really wrong, other than that your node(s) is (are) trying to contact a ROS master that isn't responding.
Are you starting one before trying to run your node(s)?
Edit:
How do I start a ROS Master?
Well, typically you'd use a roscore instance, but that would require a ROS installation. I'm not a rosjava expert, but it does include a pure Java master implementation afaik. It's just slightly less straightforward to run it.
The wiki/android/RosActivity tutorial has some info on how to add a Master Chooser to your application, but that seems like it's Android only (the chooser also allows you to start a new local master).
5 mins googling led me to this comment by Damon Kohler and this issue on how to create a minimal master in rosjava. Perhaps that is something you can use. It might be that this is no longer something you'd need to create yourself (ie: rosjava includes a stand-alone master already), but I can't find anything right now.
PS: just to make sure the rest of your application is ok, I'd actually test against a 'normal' roscore. That would give you a proper baseline, after which you could look into the rosjava master. But it obviously depends on whether you have a ROS installation handy somewhere.
ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
