ClassNotFoundException in LoggingMemcache.php line 4:

[allfreelancers]

Attempted to load class "MemcachePool" from the global namespace.
Did you forget a "use" statement?

why?ClassNotFoundException in LoggingMemcache.php line 4:

[mevdschee]

Are you using hhvm? That is a known issue on that platform. Else it may mean you don't have the extension php-memcache loaded.

[allfreelancers]

no, php 5.5 OS Windows 7

[allfreelancers]

but php 5.6 works well