"Could not create folder" error, but folder is actually created and visible after refresh

[mmallejac]

Steps to reproduce

This happens while using a share link, that points to a folder located on a docker volume, locally mounted with files_external

1. share a folder located under a local location mounted using files_external
2. using the share link, on another browser or computer, create a folder

Expected behaviour

The folder is created, no error is shown

Actual behaviour

A Could not create folder "my_folder" error message appears

Refreshing the page shows that the folder has been actually created

An error appears in the nextcloud.log file

Server configuration detail

Operating system: Linux 5.3.0-19-generic #20-Ubuntu SMP Fri Oct 18 09:04:39 UTC 2019 x86_64

Webserver: Apache/2.4.38 (Debian) (apache2handler)

Database: mysql 10.4.12

PHP version:

7.3.16
Modules loaded: Core, date, libxml, openssl, pcre, sqlite3, zlib, ctype, curl, dom, fileinfo, filter, ftp, hash, iconv, json, mbstring, SPL, PDO, session, posix, Reflection, standard, SimpleXML, pdo_sqlite, Phar, tokenizer, xml, xmlreader, xmlwriter, mysqlnd, apache2handler, apcu, exif, gd, gmp, imagick, intl, ldap, memcached, pcntl, pdo_mysql, pdo_pgsql, redis, sodium, zip, Zend OPcache

Nextcloud version: 18.0.3 - 18.0.3.0

Updated from an older Nextcloud/ownCloud or fresh install: fresh

Where did you install Nextcloud from: official docker : image nextcloud:18.0.3-apache

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.4.0
 - activity: 2.11.0
 - calendar: 2.0.2
 - cloud_federation_api: 1.1.0
 - comments: 1.8.0
 - contacts: 3.2.0
 - dav: 1.14.0
 - deck: 0.8.2
 - documentserver_community: 0.1.5
 - federatedfilesharing: 1.8.0
 - federation: 1.8.0
 - files: 1.13.1
 - files_downloadactivity: 1.7.0
 - files_external: 1.9.0
 - files_pdfviewer: 1.7.0
 - files_rightclick: 0.15.2
 - files_sharing: 1.10.1
 - files_trashbin: 1.8.0
 - files_versions: 1.11.0
 - files_videoplayer: 1.7.0
 - firstrunwizard: 2.7.0
 - issuetemplate: 0.6.0
 - logreader: 2.3.0
 - lookup_server_connector: 1.6.0
 - nextbackup: 19.12.1
 - nextcloud_announcements: 1.7.0
 - notifications: 2.6.0
 - oauth2: 1.6.0
 - onlyoffice: 4.1.4
 - password_policy: 1.8.0
 - photos: 1.0.0
 - privacy: 1.2.0
 - provisioning_api: 1.8.0
 - recommendations: 0.6.0
 - serverinfo: 1.8.0
 - settings: 1.0.0
 - sharebymail: 1.8.0
 - support: 1.1.0
 - survey_client: 1.6.0
 - systemtags: 1.8.0
 - tasks: 0.12.1
 - text: 2.0.0
 - theming: 1.9.0
 - twofactor_backupcodes: 1.7.0
 - updatenotification: 1.8.0
 - viewer: 1.2.0
 - workflowengine: 2.0.0
Disabled:
 - admin_audit
 - encryption
 - spreed
 - user_ldap

Configuration (config/config.php)

{
    "htaccess.RewriteBase": "\/",
    "memcache.local": "\\OC\\Memcache\\APCu",
    "apps_paths": [
        {
            "path": "\/var\/www\/html\/apps",
            "url": "\/apps",
            "writable": false
        },
        {
            "path": "\/var\/www\/html\/custom_apps",
            "url": "\/custom_apps",
            "writable": true
        }
    ],
    "memcache.distributed": "\\OC\\Memcache\\Redis",
    "memcache.locking": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "***REMOVED SENSITIVE VALUE***",
        "password": "***REMOVED SENSITIVE VALUE***",
        "port": 6379
    },
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "localhost",
        "starter.cloud.4next.ch"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "dbtype": "mysql",
    "version": "18.0.3.0",
    "overwrite.cli.url": "https:\/\/starter.cloud.4next.ch",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "mysql.utf8mb4": true,
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpmode": "smtp",
    "mail_smtpauthtype": "LOGIN",
    "mail_smtpsecure": "tls",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "587",
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpauth": 1,
    "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
    "overwriteprotocol": "https"
}

Are you using external storage, if yes which one: local

Are you using encryption:

Are you using an external user-backend, if yes which one:

Client configuration

Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0

Operating system: Linux

Logs

Web server error log

Nextcloud log

{"reqId":"tgHHIBoIBCmqJNqgeZXh","level":3,"time":"2020-04-09T14:14:08+00:00","remoteAddr":"185.129.54.43","user":"--","app":"public","method":"MKCOL","url":"/public.php/webdav/ttt","message":{"Exception":"Error","Message":"Call to a member function getUID() on null","Code":0,"Trace":[{"file":"/var/www/html/apps/activity/lib/FilesHooks.php","line":638,"function":"getOwner","class":"OC\\Files\\View","type":"->","args":["/Direction/shareDir/ttt"]},{"file":"/var/www/html/apps/activity/lib/FilesHooks.php","line":190,"function":"getSourcePathAndOwner","class":"OCA\\Activity\\FilesHooks","type":"->","args":["/Direction/shareDir/ttt"]},{"file":"/var/www/html/apps/activity/lib/FilesHooks.php","line":148,"function":"addNotificationsForFileAction","class":"OCA\\Activity\\FilesHooks","type":"->","args":["/Direction/shareDir/ttt","file_created","","created_public"]},{"file":"/var/www/html/apps/activity/lib/FilesHooksStatic.php","line":47,"function":"fileCreate","class":"OCA\\Activity\\FilesHooks","type":"->","args":["/Direction/shareDir/ttt"]},{"file":"/var/www/html/lib/private/legacy/hook.php","line":111,"function":"fileCreate","class":"OCA\\Activity\\FilesHooksStatic","type":"::","args":[{"run":true,"path":"/Direction/shareDir/ttt"}]},{"file":"/var/www/html/lib/private/Files/View.php","line":1275,"function":"emit","class":"OC_Hook","type":"::","args":["OC_Filesystem","post_create",{"run":true,"path":"/Direction/shareDir/ttt"}]},{"file":"/var/www/html/lib/private/Files/View.php","line":1203,"function":"runHooks","class":"OC\\Files\\View","type":"->","args":[["create","write"],"/Direction/shareDir/ttt",true]},{"file":"/var/www/html/lib/private/Files/View.php","line":269,"function":"basicOperation","class":"OC\\Files\\View","type":"->","args":["mkdir","/ttt",["create","write"]]},{"file":"/var/www/html/apps/dav/lib/Connector/Sabre/Directory.php","line":189,"function":"mkdir","class":"OC\\Files\\View","type":"->","args":["//ttt"]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php","line":1210,"function":"createDirectory","class":"OCA\\DAV\\Connector\\Sabre\\Directory","type":"->","args":["ttt"]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":590,"function":"createCollection","class":"Sabre\\DAV\\Server","type":"->","args":["ttt",{"__class__":"Sabre\\DAV\\MkCol"}]},{"function":"httpMkcol","class":"Sabre\\DAV\\CorePlugin","type":"->","args":[{"absoluteUrl":"http://starter.cloud.4next.ch/public.php/webdav/ttt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"/var/www/html/3rdparty/sabre/event/lib/EventEmitterTrait.php","line":105,"function":"call_user_func_array","args":[[{"__class__":"Sabre\\DAV\\CorePlugin"},"httpMkcol"],[{"absoluteUrl":"http://starter.cloud.4next.ch/public.php/webdav/ttt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php","line":479,"function":"emit","class":"Sabre\\Event\\EventEmitter","type":"->","args":["method:MKCOL",[{"absoluteUrl":"http://starter.cloud.4next.ch/public.php/webdav/ttt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php","line":254,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->","args":[{"absoluteUrl":"http://starter.cloud.4next.ch/public.php/webdav/ttt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"/var/www/html/apps/dav/appinfo/v1/publicwebdav.php","line":109,"function":"exec","class":"Sabre\\DAV\\Server","type":"->","args":[]},{"file":"/var/www/html/public.php","line":81,"args":["/var/www/html/apps/dav/appinfo/v1/publicwebdav.php"],"function":"require_once"}],"File":"/var/www/html/lib/private/Files/View.php","Line":1690,"CustomMessage":"--"},"userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0","version":"18.0.3.0"}

Browser log

[mmallejac]

Should I provide more information for this one ?

[Wotisrv]

I have this issue from time to time with NC 18.0.3 on Fedora 31 Server with Apache 2.4, php 7.3.

[szaimen]

As I cannot reproduce the original issue anymore, I will close this ticket. If this is still happening please make sure to upgrade to the latest version. After that, feel free to reopen. The latest version can be seen by checking https://nextcloud.com/install/#install-clients and https://nextcloud.com/install/#instructions-server respectively.

[chris125991]

I have a very similar setup where my Nextcloud v26.0.2 docker is running on unRaid v6.12.0-rc6, and the storage is on the array. I was able to fix the issue by disabling the plugin "Duplicate Finder v0.0.15".