Please follow the command to create an empty folder. Enter that and use this command:
saifurs-Mini:YO-iOS saifurrahman$ git clone your_project_url
Cloning into 'iPhoneV1'...
remote: Counting objects: 34230, done.
remote: Compressing objects: 100% (24028/24028), done.
remote: Total 34230 (delta 22212), reused 15340 (delta 9324)
Receiving objects: 100% (34230/34230), 202.53 MiB | 294.00 KiB/s, done.
Resolving deltas: 100% (22212/22212), done.
Checking connectivity... done.
saifurs-Mini:YO-iOS saifurrahman$ cd iPhoneV1/
saifurs-Mini:iPhoneV1 saifurrahman$ git checkout 1_4_0_content_discovery
Branch 1_4_0_content_discovery set up to track remote branch 1_4_0_content_discovery from origin.
Switched to a new branch '1_4_0_content_discovery'