Problem updating

[Timothy Murphy]

When I run "sudo dnf update" I get the following error
========================================================================================================================================================================
 Package                                     Arch                          
Version                                         Repository                              
Size
========================================================================================================================================================================
Skipping packages with conflicts:
(add '--best --allowerasing' to command line to force their upgrade):
 xorg-x11-server-Xorg                        x86_64                        
1.18.0-0.5.20150907.fc23                        updates-testing                        
1.4 M

Transaction Summary
========================================================================================================================================================================

Should I follow the advice to add '--best --allowerasing'?

-- 
Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublinudo