Folks In a test Centos 8 installation as a guest of VirtualBox on Windows 10, I want to install ffmpeg, and support for exfat. They're not in the standard distribution (as far as I know), so I issue as root: yum -y --enablerepo rpmfusion-free-updates install ffmpeg fuse-exfat exfat-utils and that works just fine. The ffmpeg functionality works; I haven't tested exfat yet. However, later, as part of maintenance, I want to get a list of everything that's installed, so I issue yum list installed and the following diagnostics occur: ------------------------------- Modular dependency problems: Problem 1: conflicting requests - nothing provides module(perl:5.26) needed by module perl-App-cpanminus:1.7044:8010020191120175858:a9207fc6-0.x86_64 Problem 2: conflicting requests - nothing provides module(perl:5.26) needed by module perl-DBD-MySQL:4.046:8010020191114030811:073fa5fe-0.x86_64 Problem 3: conflicting requests - nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64 Problem 4: conflicting requests - nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64 Problem 5: conflicting requests - nothing provides module(perl:5.26) needed by module perl-YAML:1.24:8010020191114031501:a5949e2e-0.x86_64 Installed Packages <long list follows> ------------------------------ By the way, cpanm works ok too. My questions are: What do these diagnostics tell me? What am I supposed to do about it? Thanks for your help David