title: Gazebo stuck at loading your world
body: <p><a href="https://i.imgur.com/hYf1Bes.jpgm" rel="nofollow noreferrer">https://i.imgur.com/hYf1Bes.jpgm</a>
  I am trying to set up ROS and Gazebo in a VM running Ubuntu. 
  The goal is that I want to simulate Turtlebot with the open manipulator.</p>
  
  <p>I installed everything without any issues. 
  Though I am not able to launch the Turtlebot environment on Gazebo (like here: <a href="http://emanual.robotis.com/docs/en/platform/turtlebot3/simulation/" rel="nofollow noreferrer">http://emanual.robotis.com/docs/en/platform/turtlebot3/simulation/</a>)</p>
  
  <p>$roslaunch turtlebot3_fake turtlebot3_fake.launch
  results in Gazebo staying forever in the state loading your world. After some time, it stops responding. 
  Launching the empty world however works.</p>
  
  <p>I am using ROS 1 with Gazebo 7.0</p>
  
  <p>My hardware setup:
  MacBook Pro 13" 2019 with 16 GB RAM
  Parallels VM: 3D virtual. ON, no performance limit, 4 CPU kernels, 12 GB RAM enabled </p>
  
  <p>Thank you so much for your help.</p>