Gazebo log files missing

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I tried to run the turtlebot3 demo simulation but I get errors stating that my gazebo-2.log and gazebo_gui-3.log is missing. The turtlebot3 model is also missing in the gazebo simulation. Please help me to solve this problem. The code I used are as below:

c:\opt\ros\melodic\x64\setup.bat
c:\ws\turtlebot3\devel\setup.bat
set TURTLEBOT3_MODEL=waffle
curl -o turtlebot3_demo.launch https://raw.githubusercontent.com/ms-iot/ROSOnWindows/master/docs/Turtlebot/turtlebot3_demo.launch
roslaunch turtlebot3_demo.launch

The error are as below:

The system cannot find the file C:\Users\Lam Yeap Sheng.ros\log\01c928e4-e87e-11eb-b0ea-9cb6d0190b46\gazebo-2.log" -s "c:\opt\ros\noetic\x64\bin\gazebo_ros_paths_plugin.dll" -s "c:\opt\ros\noetic\x64\bin\gazebo_ros_api_plugin.dll"") DO ( SET _REMAPPING 0 SET _TEMP_VAR %A FOR %A IN ("__log:. 
The system cannot find the file C:\Users\Lam Yeap Sheng.ros\log\01c928e4-e87e-11eb-b0ea-9cb6d0190b46\gazebo_gui-3.log" -g "c:\opt\ros\noetic\x64\bin\gazebo_ros_paths_plugin.dll" -g "c:\opt\ros\noetic\x64\bin\gazebo_ros_api_plugin.dll"") DO ( SET _REMAPPING 0 SET _TEMP_VAR %A FOR %A IN ("__log:.