I had the same problem on my Dell Inspiron 3520 maybe this will help you
1. Open your terminal and type
leafpad /etc/apt/sources.list
2. Copy this line and add it to the list of sources
deb...
Type: Posts; User: yossef
I had the same problem on my Dell Inspiron 3520 maybe this will help you
1. Open your terminal and type
leafpad /etc/apt/sources.list
2. Copy this line and add it to the list of sources
deb...
I can't see your attachments, could provide different links?