How to solve this problem?

[lazarus]

See in taskbar it shows a error message i don't know what it is How to solve this issue

[Aravisian]

Please open a terminal and run:

sudo apt update

relay any errors or 404 here.

If it runs without errors, please run

sudo apt upgrade

and relay the results of that here...

[lazarus]

Working thank you

[StarTreker]

Incase you have broken packages on your system, In terminal

sudo apt --fix-missing update

sudo apt update

sudo apt install -f

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[lazarus]

Thank you sir

[Aravisian]

@StarTreker

sudo apt install -f

I recommend sudo apt --fix-broken install instead. This is because "-f" in the sudo apt install -f means "Force the install" and this can cause problems if there is a reason that the install is failing in the first place. It is better to properly install or fix the install than it is to force it.

[lazarus]

Thank you, sir