R2015a ROS Initialization Problem

Question

Gokhan Alcan 2015-3-31

2
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/195523-r2015a-ros-initialization-problem

编辑： Martin Wayne 2023-12-18

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