Cannot modify header information

gregswatercolors · March 25, 2020, 7:32pm

Longtime lurker, first time poster. I’m driving myself crazy with this one. Any help is appreciated!

Nextcloud version: 17.0.1.1
Operating system and version: dietpi
Apache or nginx version (eg, Apache 2.4.25):
PHP version (eg, 7.1): I believe this is 7.3

The issue you are facing:

I am suddenly unable to access Nextcloud at all. I can’t access on Android or in a browser. I get the standard
" Internal Server Error

The server was unable to complete your request."

I have no idea what changed. Everything was working alright.

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

Steps to replicate it:

Enter the external IP/nextcloud into a browser or the internal IP/nextcloud.
OR enter the externalIP/nextcloud on the Android app. Same goes for internal IP. Android gives the “malformed server configuration” error or just times out.

The output of your Nextcloud log in Admin > Logging:

{"reqId":"QxnRZlta1glITkZzAmI9","level":3,"time":"2020-03-25T15:25:46+00:00","remoteAddr":"[External IP]","user":"--","app":"PHP","method":"GET","url":"\/nextcloud\/","message":"ini_set(): Headers already sent. You cannot change the session module's ini settings at this time at \/var\/www\/nextcloud\/lib\/base.php#408","userAgent":"Mozilla\/5.0 (Linux; Android 10; Pixel 4 X$

{"reqId":"QxnRZlta1glITkZzAmI9","level":3,"time":"2020-03-25T15:25:46+00:00","remoteAddr":"External IP]","user":"--","app":"PHP","method":"GET","url":"\/nextcloud\/","message":"ini_set(): Headers already sent. You cannot change the session module's ini settings at this time at \/var\/www\/nextcloud\/lib\/base.php#412","userAgent":"Mozilla\/5.0 (Linux; Android 10; Pixel 4 X$

{"reqId":"QxnRZlta1glITkZzAmI9","level":3,"time":"2020-03-25T15:25:46+00:00","remoteAddr":"External IP]","user":"--","app":"base","method":"GET","url":"\/nextcloud\/","message":{"Exception":"ErrorException","Message":"session_name(): Cannot change session name when headers already sent","Code":0,"Trace":[{"function":"trapError","class":"OC\\Session\\Internal","type":"->","$

{"reqId":"QxnRZlta1glITkZzAmI9","level":3,"time":"2020-03-25T15:25:46+00:00","remoteAddr":"External IP]","user":"--","app":"no app in context","method":"GET","url":"\/nextcloud\/","message":{"Exception":"Symfony\\Component\\Routing\\Exception\\RouteNotFoundException","Message":"Unable to generate a URL for the named route \"news.page.index\" as such route does not exist.",$

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

<?php
<?php
$CONFIG = array (
  'instanceid' => 'instanceid',
  'passwordsalt' => 'passwordsalt',
  'secret' => 'secret',
  'trusted_domains' =>
  array (
    0 => '[local domain IP]',
    1 => '[External IP]',
   ),
  'datadirectory' => '/datastore',
  'dbtype' => 'mysql',
  'version' => '17.0.1.1',
  'overwrite.cli.url' => 'http://192.168.0.x/nextcloud',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'dbuser',
  'dbpassword' => 'dbpassword',
  'installed' => true,
  'maintenance' => false,
);

gregswatercolors · March 26, 2020, 5:11am

The following was recorded in the log just now after a login attempt from a mobile browser.

{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#96","userAgent":"--","version":"17.0.1.1"}
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#101","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#102","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#103","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#104","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#105","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#106","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#107","userAgent":"--","version":"17.0.1.1$
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/base.php#493","userAgent":"--","version":"17.0.1.1"}
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/base.php#493","userAgent":"--","version":"17.0.1.1"}
{"reqId":"bIHygEwjkZAbgnAeFCT7","level":3,"time":"2020-03-26T04:50:01+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/config.php:1) at \/var\/www\/nextcloud\/lib\/private\/Session\/CryptoWrapper.php#89","userAgent":"--","version":"17.$

seb314 · March 26, 2020, 12:17pm

maybe-similar situation since today (or maybe yesterday):
web ui is text-only for alraedy logged-in sessions & login button doesn’t react for new sessions.

tail -n 2 nextcloud.log:

{"reqId":"nbVs30VnYGyJrQjVYdMm","level":3,"time":"2020-03-26T11:54:16+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/html\/owncloud\/config\/config.php:1) at \/var\/www\/html\/owncloud\/lib\/base.php#507","userAgent":"--","version":"15.0.2.0"}
{"reqId":"nbVs30VnYGyJrQjVYdMm","level":3,"time":"2020-03-26T11:54:16+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/html\/owncloud\/config\/config.php:1) at \/var\/www\/html\/owncloud\/lib\/base.php#507","userAgent":"--","version":"15.0.2.0"}

And some database-related error message:
tail -n10 /var/log/apache2/error.log:

[Thu Mar 26 11:17:39.132219 2020] [mpm_prefork:notice] [pid 2045] AH00169: caught SIGTERM, shutting down
[Thu Mar 26 11:18:35.535443 2020] [mpm_prefork:notice] [pid 2143] AH00163: Apache/2.4.29 (Ubuntu) OpenSSL/1.1.1 configured -- resuming normal operations
[Thu Mar 26 11:18:35.536592 2020] [core:notice] [pid 2143] AH00094: Command line: '/usr/sbin/apache2'
[Thu Mar 26 11:30:17.137139 2020] [mpm_prefork:notice] [pid 2143] AH00169: caught SIGTERM, shutting down
[Thu Mar 26 11:31:17.848409 2020] [mpm_prefork:notice] [pid 2208] AH00163: Apache/2.4.29 (Ubuntu) OpenSSL/1.1.1 configured -- resuming normal operations
[Thu Mar 26 11:31:17.858931 2020] [core:notice] [pid 2208] AH00094: Command line: '/usr/sbin/apache2'
[Thu Mar 26 11:40:10.969497 2020] [php7:error] [pid 2433] [client 188.192.198.229:48372] PHP Fatal error:  Uncaught Doctrine\\DBAL\\DBALException: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory in /var/www/html/owncloud/lib/private/DB/Connection.php:64\nStack trace:\n#0 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\\DB\\Connection->connect()\n#1 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\\DBAL\\Connection->getDatabasePlatformVersion()\n#2 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\\DBAL\\Connection->detectDatabasePlatform()\n#3 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\\DBAL\\Connection->getDatabasePlatform()\n#4 /var/www/html/owncloud/lib/private/DB/Connection.php(151): Doctrine\\DBAL\\Connection->setTransactionIsolation(2)\n#5 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php(172): OC\\DB\\Connection->__construct(Array, Object(Doctrine\\DBAL\\ in /var/www/html/owncloud/lib/private/DB/Connection.php on line 64
[Thu Mar 26 11:40:10.970225 2020] [php7:error] [pid 2433] [client 188.192.198.229:48372] PHP Fatal error:  Uncaught Doctrine\\DBAL\\DBALException: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory in /var/www/html/owncloud/lib/private/DB/Connection.php:64\nStack trace:\n#0 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\\DB\\Connection->connect()\n#1 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\\DBAL\\Connection->getDatabasePlatformVersion()\n#2 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\\DBAL\\Connection->detectDatabasePlatform()\n#3 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\\DBAL\\Connection->getDatabasePlatform()\n#4 /var/www/html/owncloud/lib/private/DB/Connection.php(151): Doctrine\\DBAL\\Connection->setTransactionIsolation(2)\n#5 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php(172): OC\\DB\\Connection->__construct(Array, Object(Doctrine\\DBAL\\ in /var/www/html/owncloud/lib/private/DB/Connection.php on line 64
[Thu Mar 26 11:40:11.079799 2020] [php7:error] [pid 5870] [client 188.192.198.229:48374] PHP Fatal error:  Uncaught Doctrine\\DBAL\\DBALException: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory in /var/www/html/owncloud/lib/private/DB/Connection.php:64\nStack trace:\n#0 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\\DB\\Connection->connect()\n#1 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\\DBAL\\Connection->getDatabasePlatformVersion()\n#2 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\\DBAL\\Connection->detectDatabasePlatform()\n#3 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\\DBAL\\Connection->getDatabasePlatform()\n#4 /var/www/html/owncloud/lib/private/DB/Connection.php(151): Doctrine\\DBAL\\Connection->setTransactionIsolation(2)\n#5 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php(172): OC\\DB\\Connection->__construct(Array, Object(Doctrine\\DBAL\\ in /var/www/html/owncloud/lib/private/DB/Connection.php on line 64
[Thu Mar 26 11:40:11.080443 2020] [php7:error] [pid 5870] [client 188.192.198.229:48374] PHP Fatal error:  Uncaught Doctrine\\DBAL\\DBALException: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory in /var/www/html/owncloud/lib/private/DB/Connection.php:64\nStack trace:\n#0 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\\DB\\Connection->connect()\n#1 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\\DBAL\\Connection->getDatabasePlatformVersion()\n#2 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\\DBAL\\Connection->detectDatabasePlatform()\n#3 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\\DBAL\\Connection->getDatabasePlatform()\n#4 /var/www/html/owncloud/lib/private/DB/Connection.php(151): Doctrine\\DBAL\\Connection->setTransactionIsolation(2)\n#5 /var/www/html/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php(172): OC\\DB\\Connection->__construct(Array, Object(Doctrine\\DBAL\\ in /var/www/html/owncloud/lib/private/DB/Connection.php on line 64

(but connecting to mysql via command line as the owncloud user works fine)

nextcloud: 15.0.2.0
php: 7.2.24
os: ubuntu 18.04.4

seb314 · March 26, 2020, 1:33pm

seems to be fixed after update to nextcloud 18.0.3

gregswatercolors · March 26, 2020, 3:14pm

Yep. Looks like the update fixed it! Thanks!

AndyXheli · September 14, 2020, 2:37pm

Back again.

github.com/nextcloud/server

Cannot modify header information (Sapi.php:132) NC 19.0.2

opened 07:17AM - 31 Aug 20 UTC

closed 08:51AM - 24 Aug 21 UTC

altosch

bug needs info 0. Needs triage

### How to use GitHub * Please use the 👍 [reaction](https://blog.github.com/2016-03-10-add-reactions-to-pull-requests-issues-and-comments/) to show that you are affected by the same issue. * Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue. * Subscribe to receive notifications on status change and new comments. ### Steps to reproduce Upgrade to NC 19.0.2. ### Expected behaviour No PHP errors in the log. ### Actual behaviour Since upgrade to 19.0.2 many error messages like this in the log: ``` [PHP] Error: Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/3rdparty/sabre/http/lib/Sapi.php:132) at /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php#680 PUT /remote.php/dav/uploads/john/4291849725/00000002 from 111.222.333.444 by john at 2020-08-29T19:34:41+02:00 ``` ``` {"reqId":"Or0R2pucFGt5YGzIyZcI","level":3,"time":"2020-08-29T19:34:41+02:00","remoteAddr":"111.222.333.444", "user":"john","app":"PHP","method":"PUT","url":"/remote.php/dav/uploads/john/4291849725/00000002", "message":"Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/3rdparty/sabre/http/lib/Sapi.php:132) at /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php#680", "userAgent":"Mozilla/5.0 (Windows) mirall/2.6.5stable-Win64 (build 20200710) (Nextcloud)","version":"19.0.2.2","id":"5f4c9578c0b93"} ``` ### Server configuration **Operating system:** Ubuntu 18.04.5 LTS **Web server:** nginx version: nginx/1.19.2 **Database:** MariaDB 10.1.44 **PHP version:** 7.2.33 (PHP 7.2.33-1+ubuntu18.04.1+deb.sury.org+1) **Nextcloud version:** 19.0.2 **Updated from an older Nextcloud/ownCloud or fresh install:** Updated from 18.0.8 **Where did you install Nextcloud from:** Web admin update **Signing status:** <details> <summary>Signing status</summary> ``` No errors have been found. ``` </details> **List of activated apps:** <details> <summary>App list</summary> ``` Enabled: - accessibility: 1.5.0 - activity: 2.12.0 - admin_audit: 1.9.0 - calendar: 2.0.4 - cloud_federation_api: 1.2.0 - comments: 1.9.0 - contacts: 3.3.0 - contactsinteraction: 1.0.0 - dav: 1.15.0 - federatedfilesharing: 1.9.0 - files: 1.14.0 - files_pdfviewer: 1.8.0 - files_rightclick: 0.16.0 - files_sharing: 1.11.0 - files_trashbin: 1.9.0 - files_versions: 1.12.0 - files_videoplayer: 1.8.0 - logreader: 2.4.0 - lookup_server_connector: 1.7.0 - nextcloud_announcements: 1.8.0 - notes: 3.6.4 - notifications: 2.7.0 - oauth2: 1.7.0 - password_policy: 1.9.1 - photos: 1.1.0 - privacy: 1.3.0 - provisioning_api: 1.9.0 - recommendations: 0.7.0 - richdocuments: 3.7.3 - serverinfo: 1.9.0 - settings: 1.1.0 - sharebymail: 1.9.0 - spreed: 9.0.3 - support: 1.2.1 - tasks: 0.13.3 - text: 3.0.1 - theming: 1.10.0 - twofactor_backupcodes: 1.8.0 - updatenotification: 1.9.0 - viewer: 1.3.0 - workflowengine: 2.1.0 Disabled: - encryption - federation - files_external - firstrunwizard - survey_client - systemtags - user_ldap ``` </details> **Nextcloud configuration:** <details> <summary>Config report</summary> ``` { "system": { "instanceid": "***REMOVED SENSITIVE VALUE***", "passwordsalt": "***REMOVED SENSITIVE VALUE***", "secret": "***REMOVED SENSITIVE VALUE***", "trusted_domains": [ "localhost", "cloud.mydomain.com" ], "datadirectory": "***REMOVED SENSITIVE VALUE***", "overwrite.cli.url": "https:\/\/cloud.mydomain.com", "dbtype": "mysql", "version": "19.0.2.2", "dbname": "***REMOVED SENSITIVE VALUE***", "dbhost": "***REMOVED SENSITIVE VALUE***", "dbport": "", "dbtableprefix": "oc_", "mysql.utf8mb4": true, "dbuser": "***REMOVED SENSITIVE VALUE***", "dbpassword": "***REMOVED SENSITIVE VALUE***", "installed": true, "activity_expire_days": 14, "auth.bruteforce.protection.enabled": true, "blacklisted_files": [ ".htaccess", "Thumbs.db", "thumbs.db" ], "cron_log": true, "enable_previews": true, "enabledPreviewProviders": [ "OC\\Preview\\PNG", "OC\\Preview\\JPEG", "OC\\Preview\\GIF", "OC\\Preview\\BMP", "OC\\Preview\\XBitmap", "OC\\Preview\\Movie", "OC\\Preview\\PDF", "OC\\Preview\\MP3", "OC\\Preview\\TXT", "OC\\Preview\\MarkDown" ], "filesystem_check_changes": 0, "filelocking.enabled": "true", "htaccess.RewriteBase": "\/", "integrity.check.disabled": false, "knowledgebaseenabled": false, "logfile": "\/var\/nc_data\/nextcloud.log", "loglevel": 2, "logtimezone": "Europe\/Prague", "log_rotate_size": 104857600, "maintenance": false, "memcache.local": "\\OC\\Memcache\\APCu", "memcache.locking": "\\OC\\Memcache\\Redis", "overwriteprotocol": "https", "preview_max_x": 1024, "preview_max_y": 768, "preview_max_scale_factor": 1, "redis": { "host": "***REMOVED SENSITIVE VALUE***", "port": 0, "timeout": 0 }, "quota_include_external_storage": false, "share_folder": "\/Shares", "skeletondirectory": "", "theme": "", "trashbin_retention_obligation": "auto, 7", "updater.release.channel": "stable", "mail_smtpmode": "smtp", "mail_smtpauthtype": "LOGIN", "mail_smtpsecure": "tls", "mail_from_address": "***REMOVED SENSITIVE VALUE***", "mail_domain": "***REMOVED SENSITIVE VALUE***", "mail_smtpauth": 1, "mail_smtphost": "***REMOVED SENSITIVE VALUE***", "mail_smtpport": "587", "mail_smtpname": "***REMOVED SENSITIVE VALUE***", "mail_smtppassword": "***REMOVED SENSITIVE VALUE***", "mail_smtptimeout": 45, "force_language": "cs", "lost_password_link": "disabled", "mail_sendmailmode": "smtp" } } ``` </details> **Are you using external storage, if yes which one:** no **Are you using encryption:** no **Are you using an external user-backend, if yes which one:** no ### Client configuration **Browser:** **Operating system:** ### Logs #### Web server error log <details> <summary>Web server error log</summary> ``` Insert your webserver log here ``` </details> #### Nextcloud log (data/nextcloud.log) <details> <summary>Nextcloud log</summary> Similar messages repeated many times: ``` {"reqId":"xTDKPVJiXelxcS5xfQ2F","level":3,"time":"2020-08-28T16:03:27+02:00","remoteAddr":"555.666.777.888","user":"john","app":"no app in context","method":"PUT","url":"/remote.php/webdav/WORK/myfile.txt","message":{"Exception":"Sabre\\DAV\\Exception\\BadRequest","Message":"Expected filesize of 1303 bytes but read (from Nextcloud client) and wrote (to Nextcloud storage) 0 bytes. Could either be a network problem on the sending side or a problem writing to the storage on the server side.","Code":0,"Trace":[{"file":"/var/www/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php","line":154,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->","args":[null]},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1104,"function":"createFile","class":"OCA\\DAV\\Connector\\Sabre\\Directory","type":"->","args":["myfile.txt",null]},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":527,"function":"createFile","class":"Sabre\\DAV\\Server","type":"->","args":["WORK/myfile.txt",null,null]},{"file":"/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->","args":[{"__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":474,"function":"emit","class":"Sabre\\DAV\\Server","type":"->","args":["method:PUT",[{"__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":251,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->","args":[{"__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":319,"function":"start","class":"Sabre\\DAV\\Server","type":"->","args":[]},{"file":"/var/www/nextcloud/apps/dav/appinfo/v1/webdav.php","line":82,"function":"exec","class":"Sabre\\DAV\\Server","type":"->","args":[]},{"file":"/var/www/nextcloud/remote.php","line":167,"args":["/var/www/nextcloud/apps/dav/appinfo/v1/webdav.php"],"function":"require_once"}],"File":"/var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php","Line":238,"CustomMessage":"--"},"userAgent":"--","version":"19.0.2.2"} {"reqId":"Or0R2pucFGt5YGzIyZcI","level":3,"time":"2020-08-29T19:34:41+02:00","remoteAddr":"111.222.333.444","user":"john","app":"PHP","method":"PUT","url":"/remote.php/dav/uploads/john/4291849725/00000002","message":"Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/3rdparty/sabre/http/lib/Sapi.php:132) at /var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php#680","userAgent":"Mozilla/5.0 (Windows) mirall/2.6.5stable-Win64 (build 20200710) (Nextcloud)","version":"19.0.2.2"} ``` </details> #### Browser log <details> <summary>Browser log</summary> ``` Insert your browser log here, this could for example include: a) The javascript console log b) The network log c) ... ``` </details>

sergio1 · October 17, 2020, 2:09pm

I had the same issue (NC 19.0.4)
I had configure an external storgae to a SMB share that was off-line.
I remove the configuration and all works well