hello i'm new user using fedora, i have installed fedora 24 derivative which is Chapeau 24. i want to run dnf upgrade --refresh but i always got error :
Error: Failed to synchronize cache for repo 'fedora'
and if run dnf -v upgrade --refresh in terminal :
Cannot download 'http://download.fedoraproject.org/pub/fedora/linux/releases/24/Everything/x86_64/os/': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried. Error: Failed to synchronize cache for repo 'fedora'
how to solve that error ?