nodelet 开发问题

版权声明：本文为博主夏日辉的原创文章，未经博主允许不得转载。 https://blog.csdn.net/shanpenghui/article/details/89634278

创建好nodelet例程之后，发现启动出现下面的错误

    [ERROR] [1556421170.585459634]: Failed to load nodelet [/MyNodeletClass] of type [example_pkg/MyNodeletClass] 
    even after refreshing the cache: According to the loaded plugin descriptions the class example_pkg/MyNodeletClass 
    with base class type nodelet::Nodelet does not exist.

然后才发现，原来是packags.xml文件里面少了一句话：

<nodelet plugin="${prefix}/plugins/nodelet_plugins.xml" />