Identifier "OCP\INavigationManager" is not defined.

[CarstenKochems]

Hi,

using Debian 8 and installed owbcloud like descriped in the wiki.

Works like a charm, but i tried to add Notes
git clone https://github.com/owncloud/notes.git

But i get the folling error and can access any menu anymore:
Identifier "OCP\INavigationManager" is not defined.

After deleting the notes folder over commandline, everything went ok.

This is the Commandline Error:
root@asdasd:/usr/share/owncloud/apps# occ app:enable notes
An unhandled exception has been thrown:
exception 'InvalidArgumentException' with message 'Identifier "OCP\INavigationManager" is not defined.' in /usr/share/php/Pimple.php:78
Stack trace:
#0 /usr/share/owncloud/lib/private/appframework/utility/simplecontainer.php(17): Pimple->offsetGet('OCP\INavigation...')
#1 /usr/share/owncloud/apps/notes/appinfo/app.php(19): OC\AppFramework\Utility\SimpleContainer->query('OCP\INavigation...')
#2 /usr/share/owncloud/lib/private/app.php(113): require_once('/usr/share/ownc...')
#3 /usr/share/owncloud/lib/private/app.php(95): OC_App::requireAppFile('notes')
#4 /usr/share/owncloud/lib/private/app.php(75): OC_App::loadApp('notes')
#5 /usr/share/owncloud/console.php(29): OC_App::loadApps()
#6 /usr/share/owncloud/occ(11): require_once('/usr/share/ownc...')
#7 {main}root@asdasd:

Thanks