$repo init -u git://github.com/mer-hybris/android.git -b hybris-13.0

... A new repo command ( 1.23) is available.

... You should upgrade soon:

cp /home/yash/Downloads/lettuce/mer/android/hadk/.repo/repo/repo /usr/bin/repo

fatal: manifest 'default.xml' not available

fatal: duplicate path device/yu/lettuce in /home/yash/Downloads/lettuce/mer/android/hadk/.repo/manifests/default.xml