"Bad message" error

Question

We get the following errors when connecting to an SFTP server. Any ideas?

Exception Type: Rebex.Net.SftpException
Message: Bad message; Bad message.
Method that threw an exception:
Void EC(Rebex.Net.SDB, System.Type)
Assembly: Rebex.Sftp
StackTrace:
at Rebex.Net.YEB.EC(SDB A, Type B)
at Rebex.Net.YEB.HB(String A, VFB B, Boolean C, BEB D)
at Rebex.Net.Sftp.XAB(BEB A, String B, Stream C, Int64 D, Int64 E, WCB H)
at Rebex.Net.Sftp.XAB(FileMode A, BEB B, String C, String D, Int64 E, Int64 H, Int64 I, WCB J)
at Rebex.Net.Sftp.WAB(FileMode A, String B, String C, Int64 D, Int64 E, Int64 H, WCB I)
at Rebex.Net.Sftp.GetFile(String remotePath, String localPath)
at Rebex.Net.FileTransferClient.GetFile(String remotePath, String localPath)

Answer 1

It turned out we were sending requests for just the file name and the server wanted ./filename

Curiously it only gave the error sometimes.

Comments

The "bad message" error has been reported by the server, possibly because it was unable to parse the client's request (it's actually supposed to indicate a "badly formatted packet", but this seems not to be the case here). If you would like to try to determine what is going on, please create a communication log using Sftp object's LogWriter property (see http://rebex.net/kb/logging/ for details) to create a communication log showing both the successful and failed requests, and mail it to support@rebex.net (or post it here) for analysis.