[Flow] File upload problem

[Mathis Hoffmann]

Hi,

I'm just trying to implement a file upload as described in the official 
flow documentation (chapter resource management) but I always get the 
following error:

*Exception while property mapping for target type 
"HdM\MusicManager\Domain\Model\MusicTitle", at property path 
"originalResource": Object with identity "bild.jpg" not found.*

I thought Flow would automatically create the corresponding Resouce-object?!

The code looks like this:
http://pastebin.com/dPcDrwaV

I attached the stack trace to this mail - hope that helps?!

Does anyone have any idea what's going wrong?

Thanks for your help in advance!

Yours
Mathis Hoffmann