[Solved] CentOS Use Yum to install dependency: error: rpmdb open failed

When installing dependencies using Yum in CentOS, the following errors are reported:

the solution is as follows:

Execute the following commands in order

 # Go to the directory where rpmdb is located
 cd /var/lib/rpm
 # Clear the original rpmdb file
 rm -f __db.*
 # Rebuild the rpm database
 rpm --rebuilddb
 # Clear all yum caches
 yum clean all

After execution, use Yum to install the dependent packages normally

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