You must set the ir.language as translatable then mark all activated modules to be updated and finally run the wizard ir.module.activate_upgrade.
But Issue 9172: Add language configuration wizard - Tryton issue tracker should simplify the task.
You must set the ir.language as translatable then mark all activated modules to be updated and finally run the wizard ir.module.activate_upgrade.
But Issue 9172: Add language configuration wizard - Tryton issue tracker should simplify the task.