Hi Mark,

It seems that you have problem installing and uninstalling due to 3rd
party.

Do one thing, run the following commands:

1. ps afx|grep dpkg [To check if this process is running].
2. If there is any process, then kill with sudo killall dpkg
3. Remove the file using sudo rm /var/lib/dpkg/lock-frontend

After this :

1. Go to system settings.
2. Go to Software& Updates.
3. Click on Other Software.
4. Remove all 3rd party repositories.
5. Run sudo apt-get update && sudo apt-get install -f && sudo apt-get update

Then check if you are able to install or uninstall anything.

** Changed in: qt4-x11 (Ubuntu)
       Status: New => In Progress

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to qt4-x11 in Ubuntu.
https://bugs.launchpad.net/bugs/1816047

Title:
  Can't install or uninstall any application

Status in qt4-x11 package in Ubuntu:
  In Progress

Bug description:
  I have this notification that says:
  **
  An error occured, please run Package Manager from the right click menu or 
apt-get from the terminal
  to see what is wrong.
  The error message was:'Error: BrokenCount > 0'. This usually means that your 
installed packages have unmet dependancies
  **

  I ran the 'sudo apt-get --qq upgrade' on the terminal and it returned:
  **
  E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or 
specify a solution).
  **

  I copy-pasted the recommendation 'apt --fix-broken install' into the terminal 
and got this back:
  **
  E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: 
Permission denied)
  E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), 
are you root?
  **

  I do have root privileges on my machine but beyond this point what am
  I meant to do as I really don't wanna mess with anything else without
  proper guidance.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/1816047/+subscriptions

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