Project Selected : None
[INFO]: Workspace : /home/saurabh/eSim-Workspace
These lines will be present. Kindly look what the line "[INFO]: Workspace :" says in your system. If there is a space or special characters such as ( or . present in the path , its natural to get this error.
Solution: Close eSim, relaunch it and click on "Browse" button in the Select Workspace directory and select C:/ drive as workspace