Topic: Roundcubemail error upgrading 1.3.10 to 1.4.2
==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.0
- Deployed with iRedMail Easy or the downloadable installer? down
- Linux/BSD distribution name and version: Ubuntu 16.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
When trying to upgrade roundcubemail from 1.3.10 to 1.4.x, I get the following:
PHP Fatal error: Uncaught Error: Call to undefined function mb_internal_encoding() in ~/roundcubemail-1.4.3/program/lib/Roundcube/bootstrap.php:86
Stack trace:
#0 ~/roundcubemail-1.4.3/program/include/iniset.php(62): require_once()
#1 ~/roundcubemail-1.4.3/program/include/clisetup.php(25): require_once('~/r...')
#2 ~/roundcubemail-1.4.3/bin/installto.sh(23): require_once('~/r...')
#3 {main}
thrown in ~/roundcubemail-1.4.3/program/lib/Roundcube/bootstrap.php on line 86
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Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.