[ERROR] [1588286007.343230]: Current /drone/down_camera/image_raw not ready yet, retrying for getting down_camera_rgb_image_raw

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I am using a script (appended to the end of this post) to setup my workspace on my Ubuntu18.04. After setting everything up I ran the following lines:

Terminal 1: roslaunch my_parrotdrone_openai_example start_training_v2.launch

Terminal 2: rosrun sjtu_drone start_gui

However I'm receiving the error:

[ERROR] [1588286007.343230]: Current /drone/down_camera/image_raw not ready yet, retrying for getting down_camera_rgb_image_raw

When doing a rostopic list, I only have the following /drone related topics available:

/drone/down_camera/image_raw
/drone/gt_acc
/drone/gt_pose
/drone/gt_vel
/drone/imu
/drone/land
/drone/posctrl
/drone/reset
/drone/sonar
/drone/takeoff
/drone/vel_mode

When looking at the source code, it appears there are a lot of missing camera topics.

When I run different non-openai launch file, i.e., roslaunch sjtu_drone contest.launch, all topics are available.

How do I fix the missing-topic issue?

Setup Script:

#!/bin/bash

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Get Base Packages
mkdir -p ~/simulation_ws/src
cd ~/simulation_ws/src
git clone -b version2 https://bitbucket.org/theconstructcore/openai_ros.git
git clone -b version2 https://bitbucket.org/theconstructcore/openai_examples_projects.git
git clone -b kinetic-gazebo9 https://bitbucket.org/theconstructcore/parrot_ardrone.git
sed -i "s/user/$USER/g" ~/simulation_ws/src/openai_examples_projects/my_parrotdrone_openai_example/config/*v2.yaml

# Install Dependencies
# sudo rosdep init # run this line if first time running
rosdep update
rosdep install --from-paths . -i

# Build
cd ~/simulation_ws
catkin_make
source devel/setup.bash
rospack profile

cd $DIR