openstack n版 dashboard打不开，向大家求助，谢谢！

[Sat Mar 18 12:36:06.686673 2017] [suexec:notice] [pid 3099] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)

[Sat Mar 18 12:36:06.730790 2017] [auth_digest:notice] [pid 3099] AH01757: generating secret for digest authentication ...

[Sat Mar 18 12:36:06.732073 2017] [lbmethod_heartbeat:notice] [pid 3099] AH02282: No slotmem from mod_heartmonitor

[Sat Mar 18 12:36:06.739390 2017] [mpm_prefork:notice] [pid 3099] AH00163: Apache/2.4.6 (CentOS) mod_wsgi/3.4 Python/2.7.5 configured -- resuming normal operations

[Sat Mar 18 12:36:06.739422 2017] [core:notice] [pid 3099] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'

这个是错误   谢谢了