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Hello experts,
When I attempt to set up any application from Ubuntu Software Center, I get the following error message.
"Failed to download package files. Check your Internet connection."
At the same time, when I attempt from terminal, then it seems fine..!
Also, I have no problem with my internet and it seems very good. Then I tried these things:
Apt-get removes software-centre
Apt-get installs software-centre
Apt-get installs updates
Apt-get installs upgrades
All these of no use!
Help me to solve it please.
Thanks.
Error while setting up any application from Ubuntu Software Center
When attempting to install software using the Ubuntu Software Center this error may occur if the package repository are out of date. You need to update repository. To update repository do as follow:
1.     Open a terminal:
2.     Type sudo apt-get update
3.     Press the Enter key
4.     Type your password and then press the Enter key
Note: when you type your password, it will look like nothing is happening. This is normal. Linux gives no feedback when password are entered.
Ubuntu will spend several minutes for updating the package repository lists. When Ubuntu has updated the package lists, try installing the software package again.The problem should gone away. If the problem persists, it may be that you have a flaky Internet connection.