R2015a ROS Initialization Problem

3 views (last 30 days)
Gokhan Alcan
Gokhan Alcan on 31 Mar 2015
Edited: Martin Wayne on 18 Dec 2023
Dear,
In MATLAB R2015a Robotics System Toolbox, I could not initialize ROS as described HERE. When I type
>> rosinit
I tried in different machines but I got this error:
Exception in thread "ROS Executor Thread" org.ros.exception.RosMessageRuntimeException: java.lang.ClassNotFoundException: std_msgs.uint32 at org.ros.internal.message.definition.MessageDefinitionReflectionProvider.get(MessageDefinitionReflectionProvider.java:66) at org.ros.internal.message.Md5Generator.generate(Md5Generator.java:44) at org.ros.internal.message.Md5Generator$1.variableValue(Md5Generator.java:61) at org.ros.internal.message.definition.MessageDefinitionParser.parseField(MessageDefinitionParser.java:172) at org.ros.internal.message.definition.MessageDefinitionParser.parse(MessageDefinitionParser.java:107) at org.ros.internal.message.Md5Generator.generateText(Md5Generator.java:86) at org.ros.internal.message.Md5Generator.generate(Md5Generator.java:49) at org.ros.internal.message.Md5Generator$1.variableValue(Md5Generator.java:61) at org.ros.internal.message.definition.MessageDefinitionParser.parseField(MessageDefinitionParser.java:172) at org.ros.internal.message.definition.MessageDefinitionParser.parse(MessageDefinitionParser.java:107) at org.ros.internal.message.Md5Generator.generateText(Md5Generator.java:86) at org.ros.internal.message.Md5Generator.generate(Md5Generator.java:49) at org.ros.internal.message.topic.TopicDescriptionFactory.newFromType(TopicDescriptionFactory.java:36) at org.ros.internal.node.DefaultNode.newPublisher(DefaultNode.java:280) at org.ros.internal.node.RosoutLogger.<init>(RosoutLogger.java:41) at org.ros.internal.node.DefaultNode.start(DefaultNode.java:195) at org.ros.internal.node.DefaultNode.access$000(DefaultNode.java:90) at org.ros.internal.node.DefaultNode$1.run(DefaultNode.java:182) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: std_msgs.uint32 at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at org.ros.internal.message.definition.MessageDefinitionReflectionProvider.get(MessageDefinitionReflectionProvider.java:62) ... 20 more Error creating the node /matlab_global_node_77548.
How can I solve this problem?
Thank you

Answers (2)

semih kilic
semih kilic on 22 Apr 2016
i have the same problem

tracy
tracy on 11 Jul 2023
I'm having the same problem, need help. Donkey Kong
  1 Comment
Martin Wayne
Martin Wayne on 18 Dec 2023
Edited: Martin Wayne on 18 Dec 2023
Hi Tracy! I can fix your every IT related problem easily by visiting Ikore and Cnetso.

Sign in to comment.

Categories

Find more on Publishers and Subscribers in Help Center and File Exchange

Products


Release

R2015a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!