Upgrade from 6 to 7: Failed to upgrade "files_sharing"

[florenthemmi]

In my log file:

Failed to update database structure (exception 'PDOException' with message 'SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'oc_share_external' already exists' in /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:742 Stack trace:
#0 [internal function]: PDO->query('CREATE TABLE `o...')
#1 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(742): call_user_func_array(Array, Array)
#2 /var/www/owncloud/lib/private/db/migrator.php(179): Doctrine\DBAL\Connection->query('CREATE TABLE `o...')
#3 /var/www/owncloud/lib/private/db/migrator.php(35): OC\DB\Migrator->applySchema(Object(Doctrine\DBAL\Schema\Schema))
#4 /var/www/owncloud/lib/private/db/mdb2schemamanager.php(98): OC\DB\Migrator->migrate(Object(Doctrine\DBAL\Schema\Schema))
#5 /var/www/owncloud/lib/private/db.php(320): OC\DB\MDB2SchemaManager->updateDbFromStructure('/var/www/ownclo...')
#6 /var/www/owncloud/lib/private/app.php(1172): OC_DB::updateDbFromStructure('/var/www/ownclo...')
#7 /var/www/owncloud/lib/private/app.php(980): OC_App::updateApp('files_sharing')
#8 /var/www/owncloud/lib/private/app.php(87): OC_App::checkUpgrade('files_sharing')
#9 /var/www/owncloud/lib/private/app.php(72): OC_App::loadApp('files_sharing')
#10 /var/www/owncloud/lib/private/updater.php(222): OC_App::loadApps()
#11 /var/www/owncloud/lib/private/updater.php(137): OC\Updater->doUpgrade('7.0.0.8', '6.0.4.1')
#12 /var/www/owncloud/core/ajax/update.php(35): OC\Updater->upgrade()
#13 {main} Next exception 'Doctrine\DBAL\DBALException' with message 'An exception occurred while executing 'CREATE TABLE `oc_share_external` (`id` INT AUTO_INCREMENT NOT NULL, `remote` VARCHAR(512) NOT NULL COMMENT 'Url of the remove owncloud instance', `share_token` VARCHAR(64) NOT NULL COMMENT 'Public share token', `password` VARCHAR(64) NOT NULL COMMENT 'Optional password for the public share', `name` VARCHAR(64) NOT NULL COMMENT 'Original name on the remote server', `owner` VARCHAR(64) NOT NULL COMMENT 'User that owns the public share on the remote server', `user` VARCHAR(64) NOT NULL COMMENT 'Local user which added the external share', `mountpoint` VARCHAR(4000) NOT NULL COMMENT 'Full path where the share is mounted', `mountpoint_hash` VARCHAR(32) NOT NULL COMMENT 'md5 hash of the mountpoint', INDEX sh_external_user (`user`), UNIQUE INDEX sh_external_mp (`user`, `mountpoint_hash`), PRIMARY KEY(`id`)) DEFAULT CHARACTER SET utf8 COLLATE utf8_bin ENGINE = InnoDB': SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'oc_share_external' already exists' in /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php:47 Stack trace:
#0 /var/www/owncloud/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(744): Doctrine\DBAL\DBALException::driverExceptionDuringQuery(Object(PDOException), 'CREATE TABLE `o...')
#1 /var/www/owncloud/lib/private/db/migrator.php(179): Doctrine\DBAL\Connection->query('CREATE TABLE `o...')
#2 /var/www/owncloud/lib/private/db/migrator.php(35): OC\DB\Migrator->applySchema(Object(Doctrine\DBAL\Schema\Schema))
#3 /var/www/owncloud/lib/private/db/mdb2schemamanager.php(98): OC\DB\Migrator->migrate(Object(Doctrine\DBAL\Schema\Schema))
#4 /var/www/owncloud/lib/private/db.php(320): OC\DB\MDB2SchemaManager->updateDbFromStructure('/var/www/ownclo...')
#5 /var/www/owncloud/lib/private/app.php(1172): OC_DB::updateDbFromStructure('/var/www/ownclo...')
#6 /var/www/owncloud/lib/private/app.php(980): OC_App::updateApp('files_sharing')
#7 /var/www/owncloud/lib/private/app.php(87): OC_App::checkUpgrade('files_sharing')
#8 /var/www/owncloud/lib/private/app.php(72): OC_App::loadApp('files_sharing')
#9 /var/www/owncloud/lib/private/updater.php(222): OC_App::loadApps()
#10 /var/www/owncloud/lib/private/updater.php(137): OC\Updater->doUpgrade('7.0.0.8', '6.0.4.1')
#11 /var/www/owncloud/core/ajax/update.php(35): OC\Updater->upgrade()
#12 {main})

[ghost]

Very likely a duplicate of: #9810

[jancborchardt]

Closing as duplicate of #9810

[jancborchardt]

Please provide any details in #9810 – thanks :)