GroupFolders not working after moving data to a new machine

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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:


Or for longer, use three backticks above and below the code snippet:


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Nextcloud version (eg, 20.0.5): 25.0.13
Operating system and version (eg, Ubuntu 20.04): Debian 11
Apache or nginx version (eg, Apache 2.4.25): Apache
PHP version (eg, 7.4): 7.4

The issue you are facing:

I have an instance of Nextcloud 25.1 on a machine that I must replace. I’ve installed a 25.1.3 version on a new machine. On this new installation, I’ve set up a data folder and this is working. Then I added an extra HD to store data and copied all the main server files to it. When I change “datadirectory” on the config file to this new data folder, Nextcloud crashes and I cannot login anymore.
When this happens, I disable the app groupfolders with occ and then I manage to login again.
I can use this new data folder if the app groupfolders is disabled, all the files are there and I can see and use them.
The groupfolder from the new installation works fine, only the groupfolder on the new disk doesn’t.
I’m getting mad here and I couldn’t find a solution on this forum or on Google and I even talked to some folks that also use Nextcloud but to no avail.
If anybody could help in anyway I would be very greatful.

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it:

  1. Installed a new server with the same version of the old server
  2. Restored the database (MySQL)
  3. Pointed the datafolder to a new directory with the original files from the old server

The output of your Nextcloud log in Admin > Logging:

[index] Erro: Exception: Typed property OCA\GroupFolders\Helper\LazyFolder::$folder must be an instance of OCP\Files\Folder or null, OC\Files\Node\File used in file '/var/www/html/nextcloud25/apps/groupfolders/lib/Helper/LazyFolder.php' line 43 at <<closure>>

0. /var/www/html/nextcloud25/lib/private/AppFramework/App.php line 172
1. /var/www/html/nextcloud25/lib/private/Route/Router.php line 298
2. /var/www/html/nextcloud25/lib/base.php line 1053
3. /var/www/html/nextcloud25/index.php line 36

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

$CONFIG = array (
  'instanceid' => 'XXXXXXXXXXX',
  'passwordsalt' => 'XXXXXXXXXXX',
  'secret' => 'XXXXXXXXXXX',
  'trusted_domains' => 
  array (
    0 => 'XXXXXXXXXXX',
//  'datadirectory' => '/var/www/nextcloud-data-25',
  'datadirectory' => '/mnt/nextcloud/data',
  'dbtype' => 'mysql',
  'version' => '',
  'overwrite.cli.url' => 'XXXXXXXXXXXX',
  'dbname' => 'XXXXXXXXXXXX',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'XXXXXXXXXXXX',
  'dbpassword' => 'XXXXXXXXXXXX',
  'installed' => true,
  'maintenance' => false,
  'defaultapp' => 'dashboard',
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 3,
  'log_type' => 'file',
  'logfile' => '/mnt/nextcloud/data/nextcloud.log',


The output of your Apache/nginx/system log in /var/log/____:

No error on Apache logs

hi @facb69 welcome to the forum :handshake:
Please follow the official server migration procedure Migrating to a different server — Nextcloud latest Administration Manual latest documentation and once successful upgrade to a maintained version.

Thanks @wwe for the answer.
I’ve just managed to workaround the issue by creating a hyperlink on the original directory to the new directory.
Now groupfolders are working! I can’t understand why though.
I’ll take a look at the tutorial you mentioned.
Again, I thank you for the attention and help.
This topic can be closed. :grinning:

It sounds like you changed the location of your datadirectory. You have to take additional steps when doing that:

The symlink is one of those approaches.

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