Oracle Export using EXPDP gives ORA-06512 SYS.UTL_FILE error on Windows 7

I am using Oracle 11g and want to export a table using below statement

C:\>expdp SYS/sys@MYDATABASE DIRECTORY = Mydir DUMPFILE = Customer.dmp LOGFILE = Customer.log TABLES = PERSON.CUSTOMER

After this statement cmd is giving this

UDE-28009: operation generated ORACLE error 28009
ORA-28009: connection as SYS should be as SYSDBA or SYSOPER

I proceeded with

Username:  SYS@SMSPSETUP AS SYSDBA
Password:

And finally I got

ORA-39002: invalid operation
ORA-39070: Unable to open the log file.
ORA-29283: invalid file operation
ORA-06512: at "SYS.UTL_FILE", line 536
ORA-29283: invalid file operation

I have created directory 'Mydir' as below

SQL>CREATE DIRECTORY Mydir AS 'C:\Users\osman\Desktop\Export';

And gave everyone full privileges to this folder from the windows folder system.

When run the below statement:

select directory_name, directory_path from dba_directories; where directory_name='Mydir';

I can see the path 'C:\Users\osman\Desktop\Export'

So why am I getting this error?

I just wanted to chime in and share what got me past this error. In my case (Ora 11.2.0.3 on Win 7) I found I needed the trailing '\' in my directory path.

Replaced:

CREATE OR REPLACE DIRECTORY dpump_dir AS 'C:\Data\SID'

With:

CREATE OR REPLACE DIRECTORY dpump_dir AS 'C:\Data\SID\'

StackExchange Database Administrators Q#71635, answer score: 5