"no namespace found" error meaning

asked 2016-10-07 13:13:32 -0500

yah130s gravatar image

In quite a few question threads (eg. 1, 2, 3) I can see the error a set of lines in the output:

Warning [gazebo.cc:215] Waited 1seconds for namespaces.
Error [Node.cc:90] No namespace found

What do these mean? Especially how do users use "No namespace found" info?

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