Failed opening reuiqred... symphony/polyfill...

[stevejordi]

Steps to reproduce

1. From the latest 13.x stable version, upgrade via the admin web interface (beta channel)
2. At the end, nextCloud doesn't load anymore
3. Web browser returns "This page isn't working, err 500"

Expected behaviour

nextCloud 14 login page

Actual behaviour

This page isn't working, err 500

Server configuration

Operating system:
CentOS 7.5.1804 64-bits

Web server:
Apache 2.4.6

Database:
MariaDB 10.2.17

PHP version:
7.2.9

Nextcloud version: (see Nextcloud admin page)
14.0.04

Updated from an older Nextcloud/ownCloud or fresh install:
13.x

Where did you install Nextcloud from:
Form the built-in admin page of nextCloud 13

Nextcloud log (data/nextcloud.log)

Nextcloud log

[Mon Aug 20 13:28:41.346014 2018] [php7:warn] [pid 2597] [client 10.20.8.100:50239] PHP Warning: require(/var/www/html/nextcloud/3rdparty/composer/../symfony/polyfill-php70/bootstrap.php): failed to open stream: No such file or directory in /var/www/html/nextcloud/3rdparty/composer/autoload_real.php on line 61 [Mon Aug 20 13:28:41.346115 2018] [php7:error] [pid 2597] [client 10.20.8.100:50239] PHP Fatal error: require(): Failed opening required '/var/www/html/nextcloud/3rdparty/composer/../symfony/polyfill-php70/bootstrap.php' (include_path='/var/www/html/nextcloud/3rdparty/pear/console_getopt:/var/www/html/nextcloud/3rdparty/pear/pear_exception:/var/www/html/nextcloud/3rdparty/pear/pear-core-minimal/src:/var/www/html/nextcloud/3rdparty/pear/archive_tar:/var/www/html/nextcloud/apps') in /var/www/html/nextcloud/3rdparty/composer/autoload_real.php on line 61

[nextcloud-bot]

GitMate.io thinks possibly related issues are #4046 (failed to open stream: File name too long), #3636 (Update fails), #3168 (Failed Upgrade to 11), #2737 (Updater fails to complete), and #7959 (Failed to remove sensitive data).

[stevejordi]

Mhhh... doesn't look like to me. I'm still trying to look for a good reason. I'm not sure whether those requirements are hardcoded somewhere, which would break paths... I'll post more if I find something.

[kesselb]

Is this still relevant?

[stevejordi]

I think you can close it.
If I'm correct, it was matter of fully removing PHP-LDAP packages and reinstalling them.
I was able to move from nc13->14->15->16