RDS 2012 R2 RemoteApp from NetShare

Hello.

We have a new RDS 2012 R2 Server.

The Problem is our ERP Software has to be started from a network share. I find out that it is not possible to publish a Application with the Servermanager which is on a netShare

So i want to try it with PowerShell, but evertime i try it i get the following error message

New-RDRemoteApp -CollectionName COLL_NAME -DisplayName APPNAME -FilePath \\SERVER\APP.EXE -IconPath \\SERVER\APP.EXE

New-RemoteApp: A RemoteDesktopServices deployment does not exist on RDS2012SERVERThis operation can be
 performed after creating a deployment.For information about creating a deployment, run "Get-Help Set-VDIDeployment" o
r "Get-Help Set-RDSHDeployment".At line:1char:1+New-RemoteApp+~~~~~~~~~~~~~+CategoryInfo:NotSpecified:(:)[Write-Error],WriteErrorException+FullyQualifiedErrorId:Microsoft.PowerShell.Commands.WriteErrorException,New-RemoteApp

Same with

get-rdremoteapp -collectionname "COLL_NAME"-connectionbroker RDS2012SERVER|Format-List

We just used a default Deployment with a Single Server.

Anyone an idea?

Thanks for the Help!