I am getting operation not supported error for session.duplicatefile() method, where it works for another sftp server

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Hi
In my project we are using wiscpUtility class to connect sftp server for file transfers, winscp utility using

SessionOptions

class which has the method called

oSession.DuplicateFile(sourcepath,destinationpath)

method which works for one sftp server and not working for another sftp server giving error as "operation not supported", can any one help me in that, I have been struggling for long.

Thanks

What I have tried:

I am not sure how to get it. how could I check which sftp server supports duplicatefile() method and which doesn't support

Posted 31-May-18 1:28am

CHAITANYA BASAVA KUMAR

Updated 31-May-18 1:49am

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Jochen Arndt · Accepted Answer · 2018-05-31T01:51:00

Looks like this WinSCP function uses internally an SFTP command that is not supported by all servers. I guess it is the copy-file command which is not a standard command and therefore only partial supported.

The solution is to open another SFTP session, navigating to the target directory, and uploading the file again to that location.