After Opatch Installation ODP.NET Application Errors With "Object Reference Not Set to an Instance of an Object"

(Doc ID 789871.1)

Last updated on JULY 05, 2017

Applies to:

Oracle Data Provider for .NET - Version: and later   [Release: 10.2 and later ]
Microsoft Windows (32-bit)


After applying an Oracle Critical Patch Update (CPU) to a or higher client installation, an application using the Oracle Data Provider for .NET (ODP.NET) results in the following OracleException:

Object reference not set to an instance of an object


Resource lookup failed - infinite recursion detected. Resource name: Arg_NullReferenceException


Application of Oracle patch to or higher.


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