Thank you for your help. But unfortunately I got the exact same error. Maybe because I'm using a proxy server to connect to the internet. So I tried to download the source code of Telemac manually, as provided in the Downloads directory. After downloading the source code successfully, I went to Control Panel to set path for the environment variables and systel.cfg. Then I ran the command "compileTELEMAC.py". Then I installed Fudaa-Prepro and Blue Kenue and downloaded the examples folder from the download section. Now I want to run a test case so that I can know whether it is working fine or not. Can you help me with this? Or tell me where am I going wrong? I appreciate your help, Juliette.