Ubuntu apt-get update failed

Newly installed ubnutu1404 64-bit, want to install Vim need to update the software source, but in Apt-get update error, error display-

Reading Package List Error

Could not get Lock/var/apt/lists/lock-open (forget about what's written in it)

Solution 1 (pro-test pass): Open softwarecenter in edit-> softwaresources Select the software source that is most appropriate for your computer and choose it.

Then open terminal, enter Apt-get update

After a while, just fine.

Solution 2 (Colleague's ubuntu1410 test pass): Remove all files from/var/lib/apt/lists

Rm/var/cache/apt/archives/lock

Rm/var/lib/dpkg/lock

Apt-get-f Install fix dependency

Apt-get Update

Ubuntu apt-get update failed