/etc/apt/sources.list" E212: Can't open file for writing

Question

I am trying to edit sources.list using vi editor but getting the following error while saving the file:

/etc/apt/sources.list\" E212: Can\'t open file for wr         


        

Answer 1

You just need to access to Gemfile with root access. Before vi:

command:

sudo su -

then:

vi ~/...