Error trying to backup Windows 2012 File cluster

Hi everybody,

I'm really stuck,  so I hope that maybe someone will have the answer ...

Here's the problem:

When I trying to setting up a new protection group, i'm getting this error : 

"DPM was unable to protect the members in the resource group [FILE_SHARE_NAME]. This resource group contains some resources that have dependencies which not present as part of this group. (ID: 199)"

Did someone already have this issue ? 

Config :

- DPM 2012 R2 RollUp8

- Target server : Windows 2012 R2 with SOFS Cluster

Thanks