Thank you.
Please try the following steps to solve the problem:
1. You must make sure there is not another package manager running
----> Restart your x server or computer
----> Close any update manager of software manager application including some
background process, in order to do so:
Use command ps -ax, This will display a list of running processes:
If you see some update process running in the background use the command
sudo kill <process number>
to kill the process
2. A lock file may prevent your package manager from getting exclusive access.
Package managers create these lock files when they starts and if they crash,
you reboot, your power goes out, etc, before they are completed, the lock file
remains and the next manager believes another manager is already running.
Use the following to delete the lock files, but make sure another copy of a
package manager isn't running first.
sudo rm /var/lib/dpkg/lock
sudo rm /var/cache/apt/archives/lock
3. Use the following command to continue any interruped previous update
process/ related problems:
sudo dpkg --configure -a
4. apt-get clean to clean the cache.
If the above 4 steps stilll does not work, please continue with this bug report:
1. Start your update manager with command line, report any error message the
application complained.
2. Again, Please detailed explained what steps did you do before the problem
occur. Did you update-manager corrupt or you have power failure before it
occurs?
3. Please add every file in '/var/log/dist-upgrade/', there should be at least
3, as separate attachments.
Thank you for your contribution to Ubuntu.
Dang Kang.
--
version update conflict
https://bugs.launchpad.net/bugs/191296
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Bugs, which is the bug contact for Ubuntu.
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