migration to version 20.0.2 fails

[dfadeur]

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Steps to reproduce

1.launch automatic migration

Expected behaviour

upgrade to 20.0.2

Actual behaviour

Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'ALTER TABLE oc_authtoken CHANGE password_invalid password_invalid TINYINT(1) DEFAULT '0'': SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes

Server configuration

Operating system:
Debian

Web server:
Apache 2
Database:
Mariadb

PHP version:
7.04

Nextcloud version: (see Nextcloud admin page)
20.0.2 (expected)

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

Where did you install Nextcloud from:

Signing status:

Signing status

Login as admin user into your Nextcloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results here.

Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'ALTER TABLE oc_authtoken CHANGE `password_invalid` password_invalid TINYINT(1) DEFAULT '0'': SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes Journaux détaillés

Préparation de la mise à jour

Réglage du niveau de journalisation à "déboguage"

Mode de maintenance activé

Étape de réparation : Repair MySQL collation

Informations de réparation : All tables already have the correct collation -> nothing to do

Étape de réparation : Repair SQLite autoincrement

Étape de réparation : Copy data from accounts table when migrating from ownCloud

Étape de réparation : Drop account terms table when migrating from ownCloud

Mise à jour du schéma de la base de données

Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'ALTER TABLE oc_authtoken CHANGE password_invalid password_invalid TINYINT(1) DEFAULT '0'': SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes

List of activated apps:

App list

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration:

Config report

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder

or 

Insert your config.php content here. 
Make sure to remove all sensitive content such as passwords. (e.g. database password, passwordsalt, secret, smtp password, …)

Are you using external storage, if yes which one: local/smb/sftp/...

Are you using encryption: yes/no

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...

LDAP configuration (delete this part if not used)

LDAP config

With access to your command line run e.g.:
sudo -u www-data php occ ldap:show-config
from within your Nextcloud installation folder

Without access to your command line download the data/owncloud.db to your local
computer or access your SQL server remotely and run the select query:
SELECT * FROM `oc_appconfig` WHERE `appid` = 'user_ldap';


Eventually replace sensitive data as the name/IP-address of your LDAP server or groups.

Client configuration

Browser:

Operating system:

Logs

Web server error log

Web server error log

Insert your webserver log here

Nextcloud log (data/nextcloud.log)

Nextcloud log

Insert your Nextcloud log here

Browser log

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...

[kesselb]

Thank you for reporting this issue 👍 Please check #15058 for more details.

Usually there are two ways to fix this:

A) Configure your database server to support utf8mb4 (https://docs.nextcloud.com/server/latest/admin_manual/configuration_database/mysql_4byte_support.html).

B) If the database server does not support utf8mb4 disable it by setting 'mysql.utf8mb4' => false in your config.php (emojis in filename, calendar events, etc. are not possible than and you have to accept the warning).