Internet connectivity issues: If the network is not smooth, the yum command cannot retrieve software source information, resulting in the inability to install or update software packages properly.
Software source configuration error: If there are mistakes in the software source configuration files under the /etc/yum.repos.d/ directory, such as incorrect software source addresses or disabled software sources, it will also cause the yum command to not function properly.
Software source failure: If the software source is already invalid or disabled, the yum command will not work either.
Incorrect dependencies: If there are incorrect dependencies during the installation or update of a software package, it can also cause the yum command to not function properly.
Software package damage: If the software package is damaged or corrupted, the yum command will also be unable to function properly.
Cache issue with yum: If the yum cache is damaged or outdated, it can also cause the yum command to not function properly.
Mismatched version: When the installed software package does not match the system version, it can also cause issues with the yum command.
