[quote="arunava_nag, post:8, topic:2640"] however I totally did not give the space between data: and Hello. [/quote] Ah yeah the space is not obvious given that the help message wraps the line just after the `:`. That tricked me recently as well. The error message has been [improved recently](https://github.com/ros2/ros2cli/pull/48) to make it clearer that a YAML dictionary is expected. [quote="arunava_nag, post:9, topic:2640, full:true"] Just a quick question, do we create metapackages in ament ros2 the same way as in ros1? [/quote] This has been [brought up recently](https://github.com/ros2/common_interfaces/pull/41) but it hasn't been decided yet if metapackages should exist as ament packages or if they should be stored in a central place given that they are for producing binaries only and should not be used as dependencies --- [Visit Topic](https://discourse.ros.org/t/unable-to-publish-from-command-line/2640/10) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: