This is a connectivity issue with your network connection which you'll need to resolve:
2016-04-14 15:43:05,968 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources Cannot initiate the connection to in.archive.ubuntu.com:80 (91.189.88.149). - connect (101: Network is unreachable) [IP: 91.189.88.149 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/multiverse/source/Sources Cannot initiate the connection to in.archive.ubuntu.com:80 (91.189.88.149). - connect (101: Network is unreachable) [IP: 91.189.88.149 80] , W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/main/binary-amd64/Packages Cannot initiate the connection to in.archive.ubuntu.com:80 (91.189.88.149). - connect (101: Network is unreachable) [IP: 91.189.88.149 80] ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1570284 Title: yaa when we try to update then they faild To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1570284/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
