The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. site:community.oracle.com

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Oracle

ODP.NET

Hello All,

Thanks in advance.

I have development machine with following configuration:

windows 7, 64 bit .

Oracle server system: 32 bit

Oracle Version :Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production

I am working on windows form application using visual studio 2010 [.NET framework 3.5]

I have reference dll Oracle.DataAccess.dll , version v2.0.50727.

When I run application on development machine I got following exception :
The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. site:community.oracle.com

Innner exception is : {"The provider is not compatible with the version of Oracle client"}

But when same application I deploy on client machine 32 bit, works fine no exception.

I am trying hard to fix the problem but cant. I tried Oracle.DataAccess.dll version 4 , but still not work, triend Oracle.DataAccess.dll version 2 for 64 bit still not work . Same exception occur everytime.

Please help me.