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Okay,you're trying to view the map using this command rosrun image_view image_view image:=/map_image/full _image_transport:=compressed i.e. you're looking for a topic called /map_image/full but looking at the output of rostopic list this doesn't exist.

There is however a topic called /map if the type of this topic is an image then you'll be able to view it by updating the topic name in your image_view command.