[ovirt-users] engine-setup failed in upgrade step to 4.3.2 with DNF errors on Centos 7.6

# engine-setup ``` [ INFO ] Stage: Initializing [ INFO ] Stage: Environment setup Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-aio.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf'] Log file: /var/log/ovirt-engine/setup/ovirt-engine-setup-20190329154037-huchep.log Version: otopi-1.8.1 (otopi-1.8.1-1.el7) [ INFO ] DNF Downloading 1 files, 0.00KB [ INFO ] DNF Downloaded Extra Packages for Enterprise Linux 7 - x86_64 [ INFO ] Stage: Environment packages setup [ INFO ] Stage: Programs detection [ INFO ] Stage: Environment setup (late) [ INFO ] Stage: Environment customization --== PRODUCT OPTIONS ==-- Set up Cinderlib integration (Currently in tech preview) (Yes, No) [No]: [ INFO ] ovirt-provider-ovn already installed, skipping. --== PACKAGES ==-- [ INFO ] Checking for product updates... [ ERROR ] DNF 'Base' object has no attribute '_group_persistor' [ INFO ] DNF Performing DNF transaction rollback [ ERROR ] Failed to execute stage 'Environment customization': 'Base' object has no attribute '_group_persistor' [ INFO ] Stage: Clean up Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20190329154037-huchep.log [ INFO ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20190329154107-setup.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ ERROR ] Execution of setup failed What can i do ? ```