X can't work,log: "could not open default font 'fixed'" ,how to do?

[aswjh]

i have compiled xorg7.6,but "could not open default font 'fixed'" when running Xorg,
log:
[  1798.705] [dix] Could not init font path element /usr/local/share/fonts/X11/misc/, removing from list!
[  1798.706] could not open default font 'fixed'
i have check the dir "/usr/local/share/fonts/X11/misc/",its ok.
fonts.alias and fonts.dir is here too.
and the xfs is running,but X cannt work,why?