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About the Knowledgebase category
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1
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490
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January 25, 2023
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How to fix an unresponsive simulation with red square dots in top-left corner
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7
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92
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December 31, 2025
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How to change the card details for your Subscription with recurring payments
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0
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35
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January 13, 2025
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ROS simulation screens are not loading
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6
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740
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December 20, 2023
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How to fix or avoid “bash: [: =: unary operator expected” on Linux
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0
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7366
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November 7, 2023
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Simulation not loading - Waiting for i-01786c45cc2b17b63.robotignitacademy.com
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3
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373
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September 18, 2023
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Proper use of rospy.Rate or ros::Rate
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3
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4203
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August 31, 2023
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How to upload a previous version of your course files to the IDE and examine the contents
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1
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285
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January 25, 2023
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ERROR: cannot launch node of type [topic_publisher/simple_topic_publisher]: can’t locate node [simple_topic_publisher] in package [topic_publisher]
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11
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11946
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December 27, 2022
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License options for Teachers
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1
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3251
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December 2, 2022
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How to reset Jenkins security
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1
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690
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July 30, 2022
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Fix for timeout issues with Object Detection with ROS2 open workshop (26th April 2022)
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1
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503
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May 7, 2022
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Content correction: Live class 64, Multiple robot navigation: Noetic
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2
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339
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January 25, 2023
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Differences between rosrun and roslaunch
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3
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9166
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January 31, 2022
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How to obtain a certificate on The Construct
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6
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24405
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January 25, 2023
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How to find the front position of a LaserScan
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2
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1058
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June 7, 2021
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How to get all topics ready for publishing before anything else!
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2
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563
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January 25, 2023
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How to publish once (only one message) into a topic and get it to work
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3
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16401
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April 16, 2021
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TIP: What to do when ROS package is not found
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1
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2278
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January 25, 2023
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What is rospy.spin(), ros::spin(), ros::spinOnce(), and what are they for?
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1
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22182
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January 25, 2023
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How to reset catkin_ws (ROS catkin workspace) and start afresh
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3
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10781
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January 18, 2021
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IDE not loading (infinite loading)
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10
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1988
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January 24, 2023
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How to stop your robot when ROS is shutting down
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2
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5299
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May 25, 2020
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ROS Publishers - what is queue_size and why is it important?
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1
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17281
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January 25, 2023
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ERROR: cannot launch node of type [package/file.py]: can't locate node [file.py] in package [package]
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4
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10185
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January 25, 2023
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Python classes - Tips on class variables, class methods, and the "self" argument
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2
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888
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January 25, 2023
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How to download package files
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3
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1731
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May 27, 2021
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