Hi Guys, same problem here, here is my output : [c7 at localhost ~]$ cat /etc/redhat-release CentOS Linux release 7.0.1406 (Core) also, yum grouplist -v, gives me : ... Available Groups: CIFS file server (cifs-file-server) Compatibility Libraries (compat-libraries) Console Internet Tools (console-internet) Desktop (basic-desktop) Desktop Platform (desktop-platform) Desktop Platform Development (desktop-platform-devel) Development Tools (development) ... and when i try to install it, i get : [c7 at localhost ~]$ sudo yum groupinstall "Development Tools" Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.informatik.hs-fulda.de * epel: mirror.imt-systems.com * extras: centos.psw.net * rpmforge: fr2.rpmfind.net * rpmfusion-free-updates: mirror.proserve.nl * rpmfusion-nonfree-updates: mirror.proserve.nl * updates: mirror.23media.de * webtatic: nl.repo.webtatic.com Warning: Group development does not have any packages to install. Maybe run: yum groups mark install (see man yum) No packages in any requested group available to install or update I've also tried to use @development : [c7 at localhost ~]$ sudo yum install @development Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.informatik.hs-fulda.de * epel: mirror.imt-systems.com * extras: centos.psw.net * rpmforge: fr2.rpmfind.net * rpmfusion-free-updates: mirror.proserve.nl * rpmfusion-nonfree-updates: mirror.proserve.nl * updates: mirror.23media.de * webtatic: nl.repo.webtatic.com Warning: Group development does not have any packages to install. Nothing to do BTW, is it possible to install anjuta on centOS 7 ? does anyone tried to install anjuta IDE on CentOS 7 ? Thanks. 2014-07-20 10:55 GMT+02:00 John R Pierce <pierce at hogranch.com>: > On 7/20/2014 1:46 AM, Ljubomir Ljubojevic wrote: > >> Ahh, 1 letter T too many, 'DevelopmTent Tools"! > >> > > > False alarm. I just checked and OP did not make the error > > every time its not worked for me, its been a spelling error. > > your mileage may vary. > > > > -- > john r pierce 37N 122W > somewhere on the middle of the left coast > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >