Installation isuue : Task [init bench] is taking too long to respond

I am trying to install erpnext into my system .
The os is UBUNTU 16.04 LTS .
Everything is going fine .
But the installation procedure is getting stuck at a point
SK [init bench] ***************************************************************************************************************************

It is not responding at all . the cursor get stuck at that point .
Can anyone please suggest .

The issue got solved.