Nextcloud Upgrade 17.0.3 to 18.0.3 -> Blank screen

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Nextcloud version: 17.0.3:
Operating system and version: Ubuntu 18.04.4 LTS - GNU/Linux 4.15.0-54-generic x86_64

PHP version: PHP 7.3.15

The issue you are facing:
I run Nextcloud 17.0.3 on a server and wanted to update via webupdater to 18.0.3. After completing the process it tells me to “go back to your Nextcloud Instance to finisch the update”. However, when clicking that button a blank screen appears. Same already happened when i wanted to upgrade to 18.0.1. So i thought I wait for the next release but same happened again.

Do you have a solution for that problem ?

Is this the first time you’ve seen this error ?: No, this is the 2nd time. First time from 17.0.3 to 18.0.1. After fail installation, backup of 17.0.3 was installed.

Steps to replicate it:

  1. Login as admin to your NC account.
  2. Go to overview
  3. Click update

The output of your Nextcloud log in Admin > Logging:

Sorry, found the “nextcloud.log” file but do no know how to view or copy its content.

Hi MFGP,

A blank screen most likely indicates an internal server error (500) - Please could you check your webservers error log?

On Ubuntu the error.log can usually be found under /var/log/apache2/

Hi Chris,

Thank you for your reply. I found the error.log under /var/log/apage2/.

How to I get it out from there or how can I read it ?

If you are logged in via SSH, you can use the command cat error.log or to just show the current buffer output tail -f error.log

If you are connected with a SFTP program, you can download the log or just open it in a text editor.

I would however suggest the tail method as this allows you to monitor the log file in real time while you try to open your nextcloud website.

I hope this helps:
root@32967:/var/log/apache2# cat error.log

[Fri Apr 03 06:25:02.637446 2020] [ssl:warn] [pid 16250] AH01909: cloud.mfgp.ch:443:0 server certificate does NOT include an ID which matches the server name

[Fri Apr 03 06:25:02.637662 2020] [mpm_prefork:notice] [pid 16250] AH00163: Apache/2.4.29 (Ubuntu) OpenSSL/1.1.1d configured – resuming normal operations

[Fri Apr 03 06:25:02.637670 2020] [core:notice] [pid 16250] AH00094: Command line: ‘/usr/sbin/apache2’

[Fri Apr 03 07:14:28.160904 2020] [authz_core:error] [pid 7878] [client 84.241.71.54:51286] AH01630: client denied by server configuration: /var/www/nextcloud/config

[Fri Apr 03 09:31:33.979522 2020] [authz_core:error] [pid 14420] [client 151.248.201.30:58972] AH01630: client denied by server configuration: /var/www/nextcloud/config

[Fri Apr 03 12:51:44.057135 2020] [authz_core:error] [pid 23646] [client 84.241.71.54:55509] AH01630: client denied by server configuration: /var/www/nextcloud/config

[Fri Apr 03 13:01:56.080054 2020] [authz_core:error] [pid 24461] [client 84.241.67.59:44659] AH01630: client denied by server configuration: /var/www/nextcloud/config

[Fri Apr 03 13:01:56.430557 2020] [authz_core:error] [pid 17784] [client 84.241.67.59:34689] AH01630: client denied by server configuration: /var/www/nextcloud/config

[Fri Apr 03 13:18:47.862769 2020] [php7:error] [pid 26591] [client 84.241.67.59:45201] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:19:01.729951 2020] [php7:error] [pid 26263] [client 84.241.67.59:34114] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:19:24.914729 2020] [php7:error] [pid 26785] [client 84.241.67.59:35967] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:26:59.372904 2020] [php7:error] [pid 26785] [client 185.125.224.42:32051] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:27:29.697783 2020] [php7:error] [pid 26263] [client 185.125.224.42:49157] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:27:30.618536 2020] [php7:error] [pid 26785] [client 185.125.224.42:52297] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:27:41.803336 2020] [php7:error] [pid 26852] [client 185.125.224.42:31599] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:31:06.764696 2020] [php7:error] [pid 26852] [client 185.125.224.42:35133] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:31:50.775169 2020] [php7:error] [pid 26221] [client 185.125.224.42:18115] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:31:50.780102 2020] [php7:error] [pid 26605] [client 185.125.224.42:57759] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:31:50.878383 2020] [php7:error] [pid 25318] [client 185.125.224.42:46351] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:31:53.642535 2020] [php7:error] [pid 26840] [client 185.125.224.42:7055] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:33:38.267336 2020] [php7:error] [pid 26263] [client 185.125.224.42:22719] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:36:02.368408 2020] [php7:error] [pid 26785] [client 84.241.67.59:37237] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:36:12.849278 2020] [php7:error] [pid 25318] [client 169.197.108.38:56074] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:38:50.252477 2020] [php7:error] [pid 25318] [client 185.125.224.42:49069] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:39:03.153644 2020] [php7:error] [pid 26785] [client 185.125.224.42:4257] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:39:03.159584 2020] [php7:error] [pid 26591] [client 185.125.224.42:24425] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:39:06.207142 2020] [php7:error] [pid 26840] [client 185.125.224.42:4125] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:40:40.061541 2020] [php7:error] [pid 27006] [client 185.125.224.42:18117] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:41:59.335328 2020] [php7:error] [pid 27006] [client 185.125.224.42:21469] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:42:06.642434 2020] [php7:error] [pid 26263] [client 185.125.224.42:2125] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:46:39.781517 2020] [php7:error] [pid 26263] [client 185.125.224.42:27521] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:49:03.815821 2020] [php7:error] [pid 26263] [client 185.125.224.42:6895] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:49:03.824591 2020] [php7:error] [pid 26842] [client 185.125.224.42:10893] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:49:03.824604 2020] [php7:error] [pid 26591] [client 185.125.224.42:59145] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:49:04.586857 2020] [php7:error] [pid 26221] [client 185.125.224.42:48141] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:55:04.294285 2020] [php7:error] [pid 26840] [client 185.125.224.42:4241] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:55:04.295487 2020] [php7:error] [pid 27006] [client 185.125.224.42:57945] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:55:04.295815 2020] [php7:error] [pid 26221] [client 185.125.224.42:4347] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:55:06.674804 2020] [php7:error] [pid 26842] [client 185.125.224.42:49297] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:56:02.099059 2020] [php7:error] [pid 26852] [client 185.125.224.42:21449] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:56:31.605731 2020] [php7:error] [pid 26591] [client 185.125.224.42:4541] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 13:57:01.060476 2020] [php7:error] [pid 26591] [client 185.125.224.42:56867] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:00:02.660750 2020] [php7:error] [pid 26852] [client 185.125.224.42:36917] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:00:03.913092 2020] [php7:error] [pid 27006] [client 185.125.224.42:49149] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:03:59.310388 2020] [php7:error] [pid 26221] [client 185.125.224.42:33521] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:09:29.011982 2020] [php7:error] [pid 26785] [client 185.125.224.42:24951] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:09:29.108022 2020] [php7:error] [pid 26591] [client 185.125.224.42:45899] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:09:29.133010 2020] [php7:error] [pid 26605] [client 185.125.224.42:23605] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:09:33.230489 2020] [php7:error] [pid 26852] [client 185.125.224.42:58525] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:10:56.482861 2020] [php7:error] [pid 26852] [client 185.125.224.42:60817] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:12:00.359626 2020] [php7:error] [pid 26591] [client 185.125.224.42:58043] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:13:16.314455 2020] [php7:error] [pid 26221] [client 185.125.224.42:31211] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:13:17.976526 2020] [php7:error] [pid 26852] [client 185.125.224.42:55945] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:16:42.583281 2020] [php7:error] [pid 26591] [client 185.125.224.42:59811] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:23:52.896403 2020] [php7:error] [pid 26785] [client 185.125.224.42:43983] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:23:53.629978 2020] [php7:error] [pid 26605] [client 185.125.224.42:48673] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:23:53.733935 2020] [php7:error] [pid 26221] [client 185.125.224.42:17691] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:23:53.737912 2020] [php7:error] [pid 26263] [client 185.125.224.42:63715] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:23:54.305800 2020] [php7:error] [pid 26852] [client 185.125.224.42:45019] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:23:56.729535 2020] [php7:error] [pid 26842] [client 185.125.224.42:15829] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:25:49.228298 2020] [php7:error] [pid 26840] [client 185.125.224.48:38413] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:25:53.879236 2020] [php7:error] [pid 25318] [client 185.125.224.48:10791] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:26:29.850368 2020] [php7:error] [pid 26785] [client 185.125.224.48:50711] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:26:59.888469 2020] [php7:error] [pid 26605] [client 185.125.224.42:44619] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:27:00.222420 2020] [php7:error] [pid 26221] [client 185.125.224.42:41045] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:27:00.223678 2020] [php7:error] [pid 26263] [client 185.125.224.42:19529] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:31:39.723826 2020] [php7:error] [pid 26221] [client 185.125.224.42:11291] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:36:24.343547 2020] [php7:error] [pid 26840] [client 185.125.224.42:33887] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:36:25.357471 2020] [php7:error] [pid 26785] [client 185.125.224.42:35045] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:36:59.934847 2020] [php7:error] [pid 26605] [client 185.125.224.42:48161] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:38:18.451704 2020] [php7:error] [pid 26605] [client 185.125.224.42:33231] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:38:18.536069 2020] [php7:error] [pid 26263] [client 185.125.224.42:29535] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:38:18.545811 2020] [php7:error] [pid 26785] [client 185.125.224.42:30745] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:38:21.519956 2020] [php7:error] [pid 26842] [client 185.125.224.42:19267] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

[Fri Apr 03 14:39:47.074921 2020] [php7:error] [pid 26221] [client 185.125.224.42:64823] PHP Fatal error: Declaration of OCA\FilesAccessControl\Operation::validateOperation($name, array $checks, $operation) must be compatible with OCP\WorkflowEngine\IOperation::validateOperation(string $name, array $checks, string $operation): void in /var/www/nextcloud/apps/files_accesscontrol/lib/Operation.php on line 31

If i remember correctly, it tried to update from 17.0.3 to 18.0.3 around 14:10.

It looks like there is a problem with an app you have installed in Nextcloud. I did a quick search on the forums and found this here

Someone else had a similar issue and was able to solve it. Give the solution from the above link a try.

Hi Felix

Thank you so much. The App “files-accesscontrol” seems to have been the problem!! I have deleted the app for var/www/nextcloud/apps and then the upgrade process continued.

Thank you very much.

Best regards

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