[horde] Using horde API to save data in calendar

[Ferdinand Gruber]

Hi,

now, Horde Kronolith is working on my testsystem and I am trying to pass 
$_POST data to my kronolith calendar.

$eol = PHP_EOL;

$ical =
"BEGIN:VCALENDAR".$eol."
VERSION:2.0".$eol."
BEGIN:VEVENT".$eol."
DTSTART:".$_POST["event_start"].$eol."
DTEND:".$_POST["event_end"].$eol."
...

require_once '/srv/www/htdocs/horde/kronolith/lib/Application.php';
Horde_Registry::appInit('kronolith', array());
$registry->setAuth('user_name', array('password'=>'the_passwd'), array());
$registry->call('calendar/put',array('kronolith/user_name',$ical,"text/calendar"));

First I got an error that 
/usr/share/php7/PEAR/Horde/Autoloader/Cache.php is missing

I looked in the documentation and then I installed

pear install horde/horde_autoloader_cache

Now I get this error

file_get_contents(/tmp/horde_autoloader_cache_71a082229a5386a280b68808643dcbdb): failed to open stream: Datei oder Verzeichnis nicht gefunden

#2 /usr/share/php7/PEAR/Horde/Autoloader/Cache/Bootstrap.php(110):file_get_contents()
#3 /usr/share/php7/PEAR/Horde/Autoloader/Cache.php(89):Horde_Autoloader_Cache_Bootstrap->get()
#4 /usr/share/php7/PEAR/Horde/Autoloader/Cache.php(206):Horde_Autoloader_Cache->__construct()
#5 /srv/www/htdocs/horde/lib/core.php(48):include_once()
#6 /srv/www/htdocs/horde/kronolith/lib/Application.php(33):require_once()
#7 /srv/www/include/php/kronolith.php(24):require_once()

What can I do? Thank you for each hint.

-- 
Regards from Austria
Ferdinand Gruber