The problem is:
2015-08-31T00:06:00.240+02:00 warning vmware-converter-agent[09080] [Originator@6876 sub=Default] Unable to get GetShortPathName for 'C:\Windows\TEMP\vmware-temp\vmware-Système\deploypkgntgqeqbujbcmalvf\deployPkg.cab', error 'Le chemin d’accès spécifié est introuvable. --> '[3]
2015-08-31T00:06:00.240+02:00 error vmware-converter-agent[09080] [Originator@6876 sub=task-6] Error while creating Customization deploy File: ERR: FileIO=0
You can customize only your VM in separate task, once the conversion complete. Seems that current problem is French Windows, so try to do this task from English Windows, or activate short-file-names (8.3) and try again.
HTH