# Revision history [back]

In order to get console output when running the log file, run gazebo in verbose mode:

gazebo -p state.log --verbose


For the gz log command, you must use the -f flag to specify the file like this:

gz log -i -f state.log


What exactly do you mean nothing happens when you playback the log file? On Gazebo7, when playing back a log file, the GUI should look different as shown on this tutorial (note the timeline on the bottom).