http://community.bwbot.org/tags/rosjavaRSS for NodeThu, 13 Aug 2026 15:47:29 GMTTue, 16 Nov 2021 03:20:09 GMT60因为occupancyGrid是由三部分组成的，分为getHeader、MapMetaData、ChannelBuffer，数据放入MapMetaData和ChannelBuffer，放入MapMetaData的数据是可以发送到下位机的，但是同一个数据包中的ChannelBuffer却没有数据。请问是什么原因，用的是LittleEndianHeapChannelBuffer，转储在slicedChannelBuffer中。

]]>http://community.bwbot.org/topic/16485/在使用rosjava的occupancygrid的时候-出现rosjava端发送的数据-下位机收不到数据情况http://community.bwbot.org/topic/16485/在使用rosjava的occupancygrid的时候-出现rosjava端发送的数据-下位机收不到数据情况Tue, 16 Nov 2021 03:20:09 GMT为什么编译总是这个错误？是依赖错了吗？

Caused by: org.gradle.api.resources.ResourceException: Could not get resource 'https://github.com/rosjava/android_core/raw/kinetic/buildscript.gradle'. at org.gradle.internal.resource.ResourceExceptions.failure(ResourceExceptions.java:74) at org.gradle.internal.resource.ResourceExceptions.getFailed(ResourceExceptions.java:57) at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceAccessor.resolve(DefaultExternalResourceAccessor.java:67) at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceAccessor.resolveUri(DefaultExternalResourceAccessor.java:47) at org.gradle.internal.resource.transfer.DefaultUriTextResourceLoader.loadUri(DefaultUriTextResourceLoader.java:43) at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.applyScript(DefaultObjectConfigurationAction.java:103) at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.access$000(DefaultObjectConfigurationAction.java:38) at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction$1.run(DefaultObjectConfigurationAction.java:68) at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.execute(DefaultObjectConfigurationAction.java:143) at org.gradle.api.internal.project.AbstractPluginAware.apply(AbstractPluginAware.java:46) at org.gradle.api.internal.project.ProjectScript.apply(ProjectScript.java:34) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) at org.gradle.internal.metaobject.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:479) at org.gradle.internal.metaobject.BeanDynamicObject.tryInvokeMethod(BeanDynamicObject.java:191) at org.gradle.groovy.scripts.BasicScript$ScriptDynamicObject.tryInvokeMethod(BasicScript.java:130) at org.gradle.internal.metaobject.ConfigureDelegate.invokeMethod(ConfigureDelegate.java:78) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:430) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:369) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69) Caused by: org.gradle.internal.resource.transport.http.HttpRequestException: Could not HEAD 'https://github.com/rosjava/android_core/raw/kinetic/buildscript.gradle'. at org.gradle.internal.resource.transport.http.HttpClientHelper.performRequest(HttpClientHelper.java:96) at org.gradle.internal.resource.transport.http.HttpClientHelper.performRawHead(HttpClientHelper.java:72) at org.gradle.internal.resource.transport.http.HttpClientHelper.performHead(HttpClientHelper.java:76) at org.gradle.internal.resource.transport.http.HttpResourceAccessor.getMetaData(HttpResourceAccessor.java:65) at org.gradle.internal.resource.transfer.DefaultExternalResourceConnector.getMetaData(DefaultExternalResourceConnector.java:63) at org.gradle.internal.resource.transfer.AccessorBackedExternalResource.getMetaData(AccessorBackedExternalResource.java:201) at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator$1.call(BuildOperationFiringExternalResourceDecorator.java:61) at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator$1.call(BuildOperationFiringExternalResourceDecorator.java:58) at org.gradle.internal.progress.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:350) at org.gradle.internal.progress.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:340) at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199) at org.gradle.internal.progress.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:120) at org.gradle.internal.resource.BuildOperationFiringExternalResourceDecorator.getMetaData(BuildOperationFiringExternalResourceDecorator.java:58) at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor$1.create(DefaultCacheAwareExternalResourceAccessor.java:102) at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor$1.create(DefaultCacheAwareExternalResourceAccessor.java:82) at org.gradle.cache.internal.ProducerGuard$AdaptiveProducerGuard.guardByKey(ProducerGuard.java:97) at org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor.getResource(DefaultCacheAwareExternalResourceAccessor.java:82) ]]>http://community.bwbot.org/topic/627/在android中使用roshttp://community.bwbot.org/topic/627/在android中使用rosWed, 22 Jan 2020 01:33:34 GMT