# Update to Nextcloud 12 Beta 1 and Beta 2 -\> Memcache not available **URL:** \ **Category:** ℹ️ Support\ **Created:** [May 10, 2017, 7:46am UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412 "2017-05-10T07:46:08Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Gilloni](https://help.nextcloud.com/user_avatar/help.nextcloud.com/gilloni/32/4042_2.png) [@Gilloni](https://help.nextcloud.com/u/Gilloni)\ **Post date:** [May 10, 2017, 7:46am UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/1 "2017-05-10T07:46:08Z")
Hello, i just wanted to try out the new Beta 12 on my CentOS 7 system. I’m running Nextcloud 11.0.3 without any issues. But when i change the folder to Nextcloud 12 i get the error: message":“OC\HintException: Memcache \OC\Memcache\APC not available for local cache at /var/www/html/nextcloud/lib/private/Memcache/Factory.php#96” But when i check the extension is available: PHP Version 5.6.30 ``` apc APC support Emulated apcu APCu Support Enabled Version 4.0.11 APCu Debugging Disabled MMAP Support Enabled MMAP File Mask /tmp/apc.cYe0l9 Serialization Support php Revision $Revision: 328290 $ Build Date May 2 2016 14:10:49 Directive Local Value Master Value apc.coredump_unmap Off Off apc.enable_cli On On apc.enabled On On apc.entries_hint 4096 4096 apc.gc_ttl 3600 3600 apc.mmap_file_mask /tmp/apc.cYe0l9 /tmp/apc.cYe0l9 apc.preload_path no value no value apc.rfc1867 Off Off apc.rfc1867_freq 0 0 apc.rfc1867_name APC_UPLOAD_PROGRESS APC_UPLOAD_PROGRESS apc.rfc1867_prefix upload_ upload_ apc.rfc1867_ttl 3600 3600 apc.serializer default default apc.shm_segments 1 1 apc.shm_size 64M 64M apc.slam_defense On On apc.smart 0 0 apc.ttl 7200 7200 apc.use_request_time On On apc.writable /tmp /tmp ``` My config: ``` $CONFIG = array ( 'updatechecker' => false, 'instanceid' => '1234567890', 'passwordsalt' => 'MySecretSalt', 'secret' => 'MySecret', 'trusted_domains' => array ( 0 => 'cloud.mydomain.com', ), 'datadirectory' => '/var/www/html/nextclouddata/data', 'overwrite.cli.url' => 'https://cloud.mydomain.com', 'dbtype' => 'mysql', 'version' => '11.0.3.2', 'dbname' => 'myDB', 'dbhost' => 'localhost', 'dbtableprefix' => 'nx_', 'dbuser' => 'MYUser', 'dbpassword' => 'MyPassword', 'logtimezone' => 'UTC', 'default_language' => 'de', 'installed' => true, 'mail_from_address' => 'next', 'mail_smtpmode' => 'php', 'mail_domain' => 'mydomain.com', 'memcache.local' => '\\OC\\Memcache\\APC', 'apps_paths' => array ( 0 => array ( 'path' => '/var/www/html/nextcloud/apps', 'url' => '/apps', 'writable' => false, ), 1 => array ( 'path' => '/var/www/html/nextcloudapps', 'url' => '/apps2', 'writable' => true, ), ), 'loglevel' => 0, 'theme' => '', 'maintenance' => false, 'htaccess.RewriteBase' => '/', 'activity_expire_days' => 1.4141414141413999E+27, 'enabledPreviewProviders' => array ( 0 => 'OC\\Preview\\Image', 1 => 'OC\\Preview\\MP3', 2 => 'OC\\Preview\\TXT', 3 => 'OC\\Preview\\MarkDown', 4 => 'OC\\Preview\\Epub', 5 => 'OC\\Preview\\PDF', 6 => 'OC\\Preview\\OpenDocument', 7 => 'OC\\Preview\\StarOffice', 8 => 'OC\\Preview\\MSOfficeDoc', 9 => 'OC\\Preview\\MSOffice2003', 10 => 'OC\\Preview\\MSOffice2007', ), 'updater.release.channel' => 'stable', ); ``` Apache Logfiles doesn’t show any messages. Do you have an idea why Nextcloud beta 12 can’t find APCu ? Thanks. Thomas ---
**Author:** ![anon99252149](https://help.nextcloud.com/letter_avatar/anon99252149/32/6_22734026db12803ebb3e059622ac3534.png) [@anon99252149](https://help.nextcloud.com/u/anon99252149)\ **Post date:** [May 10, 2017, 10:21am UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/2 "2017-05-10T10:21:17Z")
> [@Gilloni](#): > > Do you have an idea why Nextcloud beta 12 can’t find APCu ? Use `APCu` instead of `APC` in `config.php`. `'memcache.local' => '\OC\Memcache\APCu',` APC is no longer supported as of NC12. ---
**Author:** ![Markus\_Windisch](https://help.nextcloud.com/user_avatar/help.nextcloud.com/markus_windisch/32/31772_2.png) [@Markus\_Windisch](https://help.nextcloud.com/u/Markus_Windisch)\ **Post date:** [May 22, 2017, 1:09pm UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/3 "2017-05-22T13:09:13Z")
I just ran into the same problem while running the upgrade to NC 12.0 **final**. Are you sure that the issue has been fixed completely in the final? The manual edit of the config.php solved the problem. But before that the updater app killed my NextCloud by not changeing \OC\Memcache\APC to \OC\Memcache\APC **u** … ---
**Author:** ![MichaIng](https://help.nextcloud.com/user_avatar/help.nextcloud.com/michaing/32/2125_2.png) [@MichaIng](https://help.nextcloud.com/u/MichaIng)\ **Post date:** [May 22, 2017, 2:14pm UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/4 "2017-05-22T14:14:54Z")
I don’t see an intention that the updater will solve this automatically. Since APC was deprecated already long time, it also did not show up in admin manual since long ago and the [current documentation](https://docs.nextcloud.com/server/12/admin_manual/configuration_server/caching_configuration.html) clearly shows the three supported backends: APCu, Memcached and Redis ;). But yeah, would be helpful to have some overview of dropped configurations/config.php settings/deprecated stuff like old database/webserver/php versions etc. for server admins, like it exists for app developers: [https://docs.nextcloud.com/server/12/developer\_manual/app/changelog.html](https://docs.nextcloud.com/server/12/developer_manual/app/changelog.html) Showing this at the top of every update could be useful for people to know, what they might need to change manually to not running into problems needed to fix afterwards. That way the upgrade effort can also determined more precise. I just remember the change of caldav/carddav addresses before. There was an automatic fix implemented afterwards, but doing this for every change like that could be a pain, especially as upgrading for several major versions is planned. ---
**Author:** ![anon99252149](https://help.nextcloud.com/letter_avatar/anon99252149/32/6_22734026db12803ebb3e059622ac3534.png) [@anon99252149](https://help.nextcloud.com/u/anon99252149)\ **Post date:** [May 22, 2017, 2:39pm UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/5 "2017-05-22T14:39:14Z")
> [@MichaIng](#): > > would be helpful to have some overview of dropped … config.php settings You have to check the `config.sample.php` regularly (and remove old settings like `'enable_avatars' => false,` (avatars are displayed as of NC12)). ---
**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 2, 2024, 1:34pm UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/6 "2024-12-02T13:34:09Z")
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**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\ **Post date:** [December 4, 2024, 1:24pm UTC](https://help.nextcloud.com/t/update-to-nextcloud-12-beta-1-and-beta-2-memcache-not-available/12412/7 "2024-12-04T13:24:36Z")