Description of problem: The below command: sudo dnf system-upgrade download --refresh --releasever=31 returns: Aborted (core dumped) Version-Release number of selected component (if applicable): Fedora 30 attempted upgrade to Fedora 31 How reproducible: Always Steps to Reproduce: 1.sudo dnf --refresh upgrade 2.reboot 3.sudo dnf system-upgrade download --refresh --releasever=31 Actual results: terminate called after throwing an instance of 'libdnf::ModulePackageContainer::EnableMultipleStreamsException' what(): Cannot enable multiple streams for module 'ninja' Aborted (core dumped) Expected results: Download of upgrade packages Additional info: Full output: Before you continue ensure that your system is fully upgraded by running "dnf --refresh upgrade". Do you want to continue [y/N]: y Fedora 31 - x86_64 - VirtualBox 338 B/s | 181 B 00:00 Adobe Systems Incorporated 39 kB/s | 2.9 kB 00:00 Fedora Modular 31 - x86_64 133 kB/s | 18 kB 00:00 Fedora Modular 31 - x86_64 - Updates 73 kB/s | 17 kB 00:00 Fedora 31 - x86_64 - Updates 28 kB/s | 14 kB 00:00 Fedora 31 - x86_64 14 kB/s | 18 kB 00:01 google-chrome 27 kB/s | 1.3 kB 00:00 google-talkplugin 20 kB/s | 951 B 00:00 RPM Fusion for Fedora 31 - Free - Updates 2.0 kB/s | 3.3 kB 00:01 RPM Fusion for Fedora 31 - Free 5.0 kB/s | 3.2 kB 00:00 RPM Fusion for Fedora 31 - Nonfree - Updates 25 kB/s | 13 kB 00:00 RPM Fusion for Fedora 31 - Nonfree 8.2 kB/s | 3.0 kB 00:00 TeamViewer - x86_64 14 kB/s | 2.5 kB 00:00 terminate called after throwing an instance of 'libdnf::ModulePackageContainer::EnableMultipleStreamsException' what(): Cannot enable multiple streams for module 'ninja' Aborted (core dumped)
*** This bug has been marked as a duplicate of bug 1811234 ***