APPLYING 11.2.0.3 PATCH 5 (13885388), OR HIGHER, VIA OPATCH BREAKS ODAC INSTALLATION
(Doc ID 1452585.1)
Last updated on MARCH 19, 2025
Applies to:
Oracle Data Provider for .NET - Version 11.2.0.3 and laterMicrosoft Windows (32-bit)
Microsoft Windows x64 (64-bit)
Symptoms
Applying 11.2.0.3 patch 5 ( 11203p5 ), or higher, via Opatch breaks ODAC installation, even though Oracle.DataAccess.dll has been re-registered in the GAC via OraProvCfg per the patch readme.
Trying to use Oracle Developer Tools for .NET (ODT.NET) result in
"Object reference not set to an instance of an object"
Trying to use the Oracle Data Provider for .NET (ODP.NET) from an application results in an exception with no error message during a con.Open call
Stack trace:
at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure, Boolean bCheck)
at Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, Object src)
Changes
Application of 11.2.0.3 patch 5 or higher
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |