ROS CLI - unable to determine type of service

[MKervo]

Hi,
Thanks for your work ! I was looking how to build lightweight nodes in Go.

I'm using ROS Melodic
Right now, I'm trying to implement a basic service client/provider. I did as the examples says.
But I can't make them communicate with each others.

Error: lookupService: server returned an error (-1): no provider

Also, when I'm using rosnode and rosservice and use list I've got a double slash prefix.

$ rosnode list
//node_name
$ rosservice list
//service_name

I can't call them or get any infos. They seems to be unknown or corrupt in some way.

Any ideas what's going on ?

[aler9]

Hello, i wasn't able to replicate the bug. I did the following:

1. in one terminal i launched ROS melodic

   docker run --rm -it --network=host --name=ros ros:melodic-ros-core-bionic roscore
   

2. in another terminal i launched the serviceprovider.go example

   docker run --rm -it --network=host golang:1.13 sh -c "git clone https://github.com/aler9/goroslib && cd goroslib && go run examples/serviceprovider.go"
   

3. in another terminal i checked rosnode list and rosservice list

   docker exec -it ros bash -c "source /opt/ros/melodic/setup.bash && rostopic list && rosservice list"
   

the output is

/test_srv

can you provide the .go source you used to perform the test?

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