Hey, Just do what ccmake tells you to do: add the folder (with aboslute path name) where the root binaries are, in your path variable (via the command, export PATH=$PATH:/path/to/root/binaries). Then launch the compilation again, it should do the work. Cheers, Simon <div class="gmail_quote">On Fri, Feb 8, 2013 at 7:27 AM, Tom Reynolds <<a href="mailto:tom.reynolds47@gmail.com" target="_blank">tom.reynolds47@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear All, I have tried to install Gate6.2 on CentOS 6.2 (64 bit) and root_v5.32.04.source.tar.gz, clhep-2.1.1.0.tar have been installed but for installing Gate itself, I got error as the ones at the attachments, I appreciate if you guide me, thanks in advance. kind regards _______________________________________________ Gate-users mailing list <a href="mailto:Gate-users@lists.opengatecollaboration.org">Gate-users@lists.opengatecollaboration.org</a> <a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a> </blockquote></div>