Docker installation on the Centos is very simple and quick , As part of docker installation steps on the centos you might face following error after running dnf command to install latest version of docker,

# “dnf install docker-ce –nobest -y”

Errror: Transaction check error:
file /usr/share/man/man1/docker-attach.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-build.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-commit.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-container-prune.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-container.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch

So in these case podman mainpages are conflicts with the Docker ,so to fix these i just remove the manpage from podman, but keep podman. Run following command to remove podman-manpages

# sudo yum remove -y podman-manpages

Thanks