Why is this happening? How to fix it? (Exercise 2.3)
Hi @steve26
make sure you source the devel/setup.bash after compiling and that the publish_age.py is made executable with chmod +x publish_age.py
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Hi @steve26,
Welcome to the Community!
As @simon.steinmann91 mentioned, it’s probably an execute permisssion issue. The full reference to this error can be found in this knowledgebase post:
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