Always the same 3 error

Administration
1

Hello again
I’m trying to make gibbon work (for testing) on my pc running ubuntu 16.04
Each time I try to upload files, to use messenger or create units I fail and the same 3 php fatal errors appear in my error.log:

Wed Aug 30 16:00:47.481077 2017] [:error] [pid 2129] [client ::1:56264] PHP Fatal error: Uncaught Error: Call to undefined function mb_substr() in /var/www/html/core-14.0.00/functions.php:2466
Stack trace:
#0 /var/www/html/core-14.0.00/modules/Messenger/messenger_manage.php(224): formatName(‘’, ‘RedMarius’, ‘Rossi’, ‘Staff’)
#1 /var/www/html/core-14.0.00/index.php(617): include(‘/var/www/html/c…’)
#2 {main}
thrown in /var/www/html/core-14.0.00/functions.php on line 2466, referer: http://localhost/core-14.0.00/index.php

[Tue Aug 29 13:39:55.925720 2017] [:error] [pid 1354] [client ::1:53370] PHP Fatal error: Uncaught Error: Call to undefined function Gibbon\\mb_stripos() in /var/www/html/core-14.0.00/src/Gibbon/FileUploader.php:320
Stack trace:
#0 /var/www/html/core-14.0.00/src/Gibbon/FileUploader.php(120): Gibbon\\FileUploader->isFileTypeValid(‘book.jpeg’)
#1 /var/www/html/core-14.0.00/src/Gibbon/FileUploader.php(185): Gibbon\\FileUploader->upload(‘book.jpeg’, ‘/tmp/phpYEQL8p’)
#2 /var/www/html/core-14.0.00/modules/Resources/resources_addQuick_ajaxProcess.php(71): Gibbon\\FileUploader->uploadFromPost(Array)
#3 {main}
thrown in /var/www/html/core-14.0.00/src/Gibbon/FileUploader.php on line 320, referer: http://localhost/core-14.0.00/index.php?q=/modules/Messenger/messenger_postQuickWall.php

[Mon Aug 28 21:31:29.287223 2017] [:error] [pid 3077] [client ::1:41086] PHP Fatal error: Uncaught Error: Call to undefined function mb_substr() in /var/www/html/core-14.0.00/functions.php:2464
Stack trace:
#0 /var/www/html/core-14.0.00/modules/Timetable/tt.php(217): formatName(‘Ms.’, ‘Jazmine’, ‘Baker’, ‘Staff’, true)
#1 /var/www/html/core-14.0.00/index.php(617): include(‘/var/www/html/c…’)
#2 {main}
thrown in /var/www/html/core-14.0.00/functions.php on line 2464, referer: http://localhost/core-14.0.00/index.php?q=/modules/Timetable/tt_space.php

Can anyone please tell my what I do wrong?
Can it be a permission issue?
Thank you and sorry for my inexperience

2

Hi missj,

It looks like it’s failing on the multibyte string functions, your system may not have the mbstring extension installed/enabled. Sounds like it’s something that was default for ubuntu 14 but not for 16.04. There’s some instructions here for installing and enabling the extension: https://askubuntu.com/questions/772397/mbstring-is-missing-for-phpmyadmin-in-ubuntu-16-04

Hope this helps!

3

you are great!!!
thank you sandra!!
I’v follow the tutorial and it seems to work fine!
Thank you again

4

Glad to hear it’s working! :smiley: We’ve now added mbstring to the list of required extensions so it’s easier to notice if it’s not enabled during the install step.