[horde] ActiveSync classes not found after Horde move

[Michael Brohl]

Hi,

after moving my Horde installation to a new server (Ubuntu 18.04 LTS,
PHP 7.2) the active sync components do not work.

If I go to the adminstration section (domain.tld/admin/config/) the 
following
error is shown:

Class 'Horde_ActiveSync_State_Sql' not found
in /usr/share/php/Horde/Core/Factory/ActiveSyncState.php:24

1. Horde_Core_Nosql->getDrivers()
/usr/share/php/www/horde/admin/config/index.php:297
2. Horde_Core_Nosql->{closure}() /usr/share/php/Horde/Core/Nosql.php:78
3. Horde_Injector->getInstance() /usr/share/php/Horde/Core/Nosql.php:51
4. Horde_Injector->createInstance() /usr/share/php/Horde/Injector.php:272
5. Horde_Injector_Binder_Factory->create()
/usr/share/php/Horde/Injector.php:238
6. Horde_Core_Factory_ActiveSyncState->create()
/usr/share/php/Horde/Injector/Binder/Factory.php:119


The horde logs (syslog) also show the following errors:

HORDE[5618]: [horde] Error: Class 'Horde_ActiveSync_Wbxml' not found
in /usr/share/php/Horde/Core/Factory/ActiveSyncServer.php:13
Stack trace:
#0 /usr/share/php/Horde/Injector/Binder/Factory.php(119):
Horde_Core_Factory_ActiveSyncServer->create(Object(Horde_Injector))
#1 /usr/share/php/Horde/Injector.php(238):
Horde_Injector_Binder_Factory->create(Object(Horde_Injector))
#2 /usr/share/php/Horde/Injector.php(272):
Horde_Injector->createInstance('Horde_ActiveSyn...')
#3 /usr/share/php/www/horde/rpc.php(102):
Horde_Injector->getInstance('Horde_ActiveSyn...')
#4 {main} [pid 5618 on line 74 of "/usr/share/php/Horde/ErrorHandler.php"]

HORDE[6107]: [horde] Error: Class 'Horde_ActiveSync_State_Sql' not
found in /usr/share/php/Horde/Core/Factory/ActiveSyncState.php:24
Stack trace:
#0 /usr/share/php/Horde/Injector/Binder/Factory.php(119):
Horde_Core_Factory_ActiveSyncState->create(Object(Horde_Injector))
#1 /usr/share/php/Horde/Injector.php(238):
Horde_Injector_Binder_Factory->create(Object(Horde_Injector))
#2 /usr/share/php/Horde/Injector.php(272):
Horde_Injector->createInstance('Horde_ActiveSyn...')
#3 /usr/share/php/Horde/Core/Nosql.php(51):
Horde_Injector->getInstance('Horde_ActiveSyn...')
#4 /usr/share/php/Horde/Core/Nosql.php(78): Horde_Core_Nosql->{closure}()
#5 /usr/share/php/www/horde/admin/config/index.php(297):
Horde_Core_Nosql->getDrivers('horde', 1)
#6 {main} [pid 6107 on line 74 of "/usr/share/php/Horde/ErrorHandler.php"]


I moved the installation by updating the old to the latest version
through pear and installed the same on the new server. I copied over
the install containing all configurations from old to new afterwards
and restored the mysql dump on the new servers database.

Webmail and calendar are working fine but admin configuration is not
possible because of the first error and syncing clients does not work.

Any ideas how to solve this?

Thanks,
Michael