OSD error "Could not parse or process the unattend answer file"

[Fraeco]

Hey,

 

I'm trying to build a 2008R2 install for later capture using SCCM.

I created a task sequence for installing from the install.wim provided on my Server 2k8R2 iso.

 

The install failes on "Applying system settings" with the following error.

Windows could not parse or process the unattend answer file for pass [specialize]. The settings specified in the answer file cannot be applied. The error was detected while processing settings for component [Microsoft-Windows-Shell-Setup].

I tried recreating the TS to no avail. The boot image i'm using works for other deployments and I can manually install from the iso where I extracted the install.wim.

 

What am I doing wrong here?

 

Kind regards!