Got it. Thanks.

For future memory what I did was:

ros::ServiceServer service =
n.advertiseService<testpack::switcherRequest,testpack::switcherResponse>("switcher",boost::bind(troca,_1,_2,500));



2010/10/25 Josh Faust <jfaust@willowgarage.com>

>
>> And it doesn't work.
>>
>
> First, saying "it doesn't work" is meaningless.  Please include the exact
> errors you're getting in the future.
>
> Second, if you look at the API docs, advertiseService needs both the
> request and response types (and std_msgs/String is not a service type).
>
> Josh
>
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