Service quiz - problem reading the custom message

Course Support ROS Basics In 5 Days (Python)
1

Hi,

I’ve created the custom message correctly (checked it with rossrv list and rossrv show). But when I try to launch the code, I get the following error message:

ImportError: No module named BB8CustomServiceMessage.srv

I’ve triple checked the permissions (all executables: file and directories), the file name, deleted it and recreated it, recompliled, sourced (many times!). Nothing seems to work. What could be the problem and how can I solve it? Any help will be greatly appreciated.

Cheers,

2

Hi @paedusan,

Is BB8CustomServiceMessage the name of your package? It seems you’re mixing up the package and custom message names.

The import line format is:

from [name_of_package_containing_custom_service].srv import CustomServiceMessage
4

Yes! I was messing up the package name with custom message names. Thanks very much for the spot on reply!

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