Didn't find class "std_msgs.uint32" error on Android Studio [SOLVED]
Hi everyone.
I am trying to run ROS on my Android device. I downloaded the project below. https://github.com/ollide/rosjava_and...
I opened up it in Android Studio. When I run the project there is nothing wrong. After I click to Connect, Public Master or Private Master it throws the exception below.
It would be really great if anyone can help me or you can tell me what is the best way to run ROS on Android.
OS: Windows 10
IDE: Android Studio 2.1
Device version: Android 5.0, 4.4, 5.1, 6.0
Thanks
UPDATE 1: It also throws the same exception with the examples at https://github.com/rosjava-release/gr... on Ubuntu OS.
UPDATE 2: The app from ollide's project is working well on the virtual devices which are created by Genymotion emulator. After I pressed the connect button, I can see the Android node by executing "rostopic list" on my ubuntu. Still got the same error on my physical devices.
FATAL EXCEPTION: pool-1-thread-7 Process: org.ollide.rosandroid, PID: 31466 org.ros.exception.RosMessageRuntimeException: java.lang.ClassNotFoundException: Didn't find class "std_msgs.uint32" on path: DexPathList[[zip file "/data/app/org.ollide.rosandroid-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] at org.ros.internal.message.definition.MessageDefinitionReflectionProvider.get(MessageDefinitionReflectionProvider.java:58) 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:270) at org.ros.internal.node.RosoutLogger.<init>(RosoutLogger.java:41) at org.ros.internal.node.DefaultNode.start(DefaultNode.java:186) at org.ros.internal.node.DefaultNode.access$000(DefaultNode.java:85) at org.ros.internal.node.DefaultNode$1.run(DefaultNode.java:173) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:818) Caused by: java.lang.ClassNotFoundException: Didn't find class "std_msgs.uint32" on path: DexPathList[[zip file "/data/app/org.ollide.rosandroid-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:511) at java.lang.ClassLoader.loadClass(ClassLoader.java:469) at org.ros.internal.message.definition.MessageDefinitionReflectionProvider.get(MessageDefinitionReflectionProvider.java:54) at org.ros.internal.message.Md5Generator.generate(Md5Generator.java:44) at org.ros ...
