Hello,
For one of my customer, I have made an upgrade of his mediawiki from 1.15 to last version. I have copy / paste the images directory but when I visit some pages, in place of thumbnails, I have "Erreur lors de la création de la miniature : Error code: -1"
If I go to the same page connected as admin, that works! I see thumbnails.
Other problem is that when I try to click on an image, I can't see file data and history but I have "
Erreur de la base de données
Une erreur de requête de base de données s'est produite. Cela peut provenir d'un bogue dans le logiciel.
Thx for your help,
Olivier