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my vs.net 2008 version:
vs.net 2008 9.0.30729.1 sp
Microsoft FrameWork version 3.5 sp1
Oradirect.net
version:Professional Editon 4.75.39.0
OraDeveloper Tool:2.55.123.0
Oracle Version:oracle 9i
Create EDM string:
metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=CoreLab.Oracle;provider connection string="User Id=system;Server=CTAIS;Persist Security Info=True"
ERROR Message:
System.Data.EntityCommandExecutionException
Type:CoreLab.Oracle.OracleException
ErrorMessage:
ORA-03313:end-of-file on communication channel
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I am your Business user.
help me!

Please make sure the connection problem exists only with EDM wizard. Probably there is no connection to your database.
More about this situation: http://www.dba-oracle.com/m_ora_03113_e ... hannel.htm

P.S. We have removed your duplicated post at http://www.devart.com/forums/viewtopic.php?t=12711