using python "In_Memory" for arcpy.conversion.ImportCADAnnotation

Discussion created by mike.robb on Apr 8, 2013
Latest reply on Apr 2, 2014 by BrokenLegMike
As the title states...

trying to gather thousands of dwgs annotation to one annotation featureclass in a FileGeodatabase.

the middle step, of using arcpy.conversion.ImportCadAnnotation failes:
Using "In_memory" would be using the Srcatch.gdb, but in catalog it does not require upgrading.

Runtime error  Traceback (most recent call last):   File "<string>", line 11, in <module>   File "c:\program files (x86)\arcgis\desktop10.1\arcpy\arcpy\conversion.py", line 1687, in ImportCADAnnotation     raise e ExecuteError: ERROR 000015: This Geodatabase version doesn't support the new annotation model. You should first upgrade it. Failed to execute (ImportCADAnnotation).

strange though, it works when pointing to it 
... just not when using "In_memory".