Call to undefined function mb_detect_encoding() in /tmp/

When running the installer for a multiserver I get this error:

MySQL master server database name [dbispconfig]:

PHP Fatal error: Uncaught Error: Call to undefined function mb_detect_encoding() in /tmp/ispconfig3_install/install/lib/mysql.lib.php:448
Stack trace:
#0 /tmp/ispconfig3_install/install/lib/mysql.lib.php(166): db->escape('validate_passwo...')
#1 /tmp/ispconfig3_install/install/lib/mysql.lib.php(231): db->_build_query_string('SELECT plugin_n...', Array)
#2 /tmp/ispconfig3_install/install/lib/mysql.lib.php(270): db->_query('SELECT plugin_n...', Array)
#3 /tmp/ispconfig3_install/install/lib/mysql.lib.php(319): db->query('SELECT plugin_n...', Array)
#4 /tmp/ispconfig3_install/install/lib/installer_base.lib.php(238): db->queryAllRecords('SELECT plugin_n...', Array)
#5 /tmp/ispconfig3_install/install/install.php(294): installer_base->configure_database()
#6 {main}
thrown in /tmp/ispconfig3_install/install/lib/mysql.lib.php on line 448

 

i think, you missed at least one step from the tutorial. tyr apt-get install php-mbstring or 7.0 if you are runngin debian stretch

 

Runnung ubuntu 16.04 and apt-get install php-mbstring did the trick..

Thanks !!

 

Hi,

Now on another server I get another error

Code:

Shall this server join an existing ISPConfig multiserver setup (y,n) [n]:

Adding ISPConfig server record to database.

ERROR: Unable to create database user: ispconfig Error:
root@cpanel:/tmp/ispconfig3_install/install#

Shall this server join an existing ISPConfig multiserver setup (y,n) [n]:

Adding ISPConfig server record to database.

ERROR: Unable to create database user: ispconfig Error:
root@cpanel:/tmp/ispconfig3_install/install#

 

Hi Till, you might want to add this package to the manual (3.1). Also missing in the multiserver setup.
Cheers.