first of all sorry, I'm a newby with Identity Manager / eDirectory products.

Here is my problem :
- I have 2 Trees.
- I add 2 new servers to my TreeA, replica ring is OK
- I launch "eDir2eDir Driver Certificates Wizard", write the god authentification informations for the TreeA and TreeB. The wizard start certificates builduinf ... and stop with :

Error: Driver Wizard - Error
The following 'Exception' was thrown but not handled.

''Unable to create the certificates. The following error occurred: -1''.

Version old servers : Idendity Manager 4.5.6 with eDirectory v8.8 SP8
Version new servers : Idendity Manager 4.7.1 with eDirectory v9.1.2
iManager version 3.1.2

Thank you