Setting up ERPNext by

sparshi@sparshi-VirtualBox:~$ sudo bash --setup-production
Installing for Ubuntu trusty amd64
In case you encounter an error, you can post on

Adding ubuntu mariadb repo
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.0PB8PAFNoP --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --recv-keys --keyserver hkp:// 0xcbcb082a1bb943db
gpg: requesting key 1BB943DB from hkp server
gpgkeys: key CBCB082A1BB943DB can’t be retrieved
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0

Please follow this tutorial to setup ERPNext