Folder stage to xml stage

[waklook]

Hi all,
I'm using folder stage to extract multiple xml files from some directory in unix server , i have this error coming up,

"XmlFoldrTEst..Folder_0.: DSD_DIROpen Failed to set NLS map MS1252-CS on directory /invoice/NOV_Invoice."

by the way i change the NLS to many other including "NONE ,ASCII,...etc"

but same error occured and in some of them giving this:

"Read operation failure. DataStage Job 1208 Phantom 15962
"MS1256" does not contain a round trip mapping and therefore is not a valid NLS file map.
Job Aborted after Fatal Error logged.
Attempting to Cleanup after ABORT raised in stage XmlFoldrTEst..Sequential_File_1.IDENT1
DataStage Phantom Aborting with @ABORT.CODE = 1"

can any help me on that Please,

Waklook

[ray.wurlod]

Failure to set NLS map may indicate that the executing user ID lacks write permission to the /invoice/NOV_Invoice directory. Setting an NLS map involves writing a hidden file called .nlsmap into the directory.