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I have the message:

Error Broken count >0
Check if you are using third party repositories. If so disable them, since they are a common source of problems.
Furthermore run the following command in a Terminal: apt-get install -f
Details: The following packages have unmet dependencies:
firefox-globalmenu: Depends: firefox (= 19.0+build1-0ubuntu0.12.04.2) but 19.0+build1-0ubuntu0.12.04.1 is installed

Any suggestions?

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run df -i in terminal an post the result in question. – Afshin Hamedi Sep 3 '14 at 5:14
up vote 8 down vote accepted

as this message said may be you have bad repositories so please remove it if you can't now it so remove all repositories and keep only the defaults make this with open terminal and write

gksu software-properties-gtk

this will open software sources move to tab other software and remove all third party repositories as i said make it like this

will be like this

after that write this command and see if problem still found or not

sudo apt-get update && sudo apt-get install -f && sudo apt-get update
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Mahmoud20070 thanks. I think the problem is solved! – Perry Mar 3 '13 at 23:49

Just click on forbidden Icon on top bar, select "Show updates" and follow screen instructions:

enter image description here

by right-click on it, this error message written in it:

An error occurred, please run Package Manager from the right-click menu or apt-get in a teminal to see what is wrong. The error message was :'Error:BrokenCount>0'. This usually means that your installed packages have unment dependences

Also you can use command instead: sudo apt-get install --fix-broken

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This fixed my problem. I was able to locate exactly what package was causing the trouble and removed it. Then problem solved. – Ébe Isaac Jun 29 at 6:24

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