How to solve the error when doing "aptitude install"?

Question

linux

Can't install programs via 'aptitude install'
What should I do?

Answer 1

sudo apt install qt-sdk

Answer 2

fuser -vki /var/lib/dpkg/lock
The command to run as root
This error often occurs. It appears as a result of the fact that you incorrectly completed work with the package manager.

Answer 3

It is written in Russian in white - there are no rights. Only root (user with id 0) can install packages.
man su
man sudo

Answer 4

Aptitude has long since been deprecated, please don't use it. Use apt-get or if you have a fresh OS just apt.
And remember, the package manager is only available to the root user, so elevate privileges with su or sudo.