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RosCore on Android fails

asked 2015-03-16 16:01:13 -0500

r2doesinc gravatar image

Hello. I have put together the most basic project I could to show this error. https://github.com/FutureHax/BrokenRos

When ros core is started on the Android device, message fail to be passed through.

Start the app, use the MasterChooser to start a new public master. Point your computer to the ros core instance on your phone. Attempt to push a message.

What I see when attempting this steps is the following.

03-16 16:51:16.012  30235-30842/com.cloudspace.coretester E/XmlRpcErrorLogger﹕ No such handler: system.multicall
org.apache.xmlrpc.server.XmlRpcNoSuchHandlerException: No such handler: system.multicall
        at org.apache.xmlrpc.server.AbstractReflectiveHandlerMapping.getHandler(AbstractReflectiveHandlerMapping.java:214)
        at org.apache.xmlrpc.server.XmlRpcServerWorker.execute(XmlRpcServerWorker.java:45)
        at org.apache.xmlrpc.server.XmlRpcServer.execute(XmlRpcServer.java:86)
        at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:200)
        at org.apache.xmlrpc.webserver.Connection.run(Connection.java:208)
        at org.apache.xmlrpc.util.ThreadPool$Poolable$1.run(ThreadPool.java:68)

I have seen a few other issues mention this "system.multicall" line, but none have been resolved.

Am I doing something incorrect or is there a bug in the ros code?

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Comments

If you really feel this is a bug, perhaps reporting it directly on the rosjava and/or android_core issue trackers would be more efficient.

gvdhoorn gravatar image gvdhoorn  ( 2015-03-17 04:43:02 -0500 )edit

I have the same problem using roscore on Android. This seems to be a bug in ROS Java: roslaunch uses XML-RPC function system.multicall - which is not supported by rosjava.

Have somebody any idea how to fix this?

mmore gravatar image mmore  ( 2016-02-26 00:48:51 -0500 )edit

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answered 2018-04-18 13:47:00 -0500

gvdhoorn gravatar image

This would seem to be fixed with the merge of rosjava/rosjava_core#273.

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Asked: 2015-03-16 16:01:13 -0500

Seen: 454 times

Last updated: Apr 18 '18