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Error: The provider is not compatible with the version of Oracle client

Posted on 2009-05-05
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Last Modified: 2013-12-18
I have a VS2008 web site that is a total rebuild of one I did in VS2005. I use the ODP.NET client to connect to my Oracle 10g Database. All are the same version (patched) to 10.2.0.4. Though I am able to run the application from my development machine, I'm totally unable to get the site up and running on either my web server or my actual database server. All machines are patched up to 10.2.0.4. All machines' assembly folders have the same versions of the Oracle.DataAccess assembly.  What am I overlooking? Below is the stack trace:


OracleException (0x80004005): The provider is not compatible with the version of Oracle client
Oracle.DataAccess.Client.OracleInit.Initialize() +331
Oracle.DataAccess.Client.OracleConnection..cctor() +443


Oracle.DataAccess.Client.OracleConnection..ctor() +0
ArmylogWeb.userlogin..ctor() in D:\armylogwebdev\ArmylogWeb\userlogin.aspx.vb:5
ASP.userlogin_aspx..ctor() +14
__ASP.FastObjectFactory_app_web_tlsmyhpa.Create_ASP_userlogin_aspx() +20
System.Web.Compilation.BuildResultCompiledType.CreateInstance() +32
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +119
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +33
System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +160
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +93
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
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Question by:calibreinc
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My apologies, turned out the third time is the charm.  I ended up deleting and resintalling ODP.NET a third time and it solved the problem.  No doubt something didn't register properly on install.
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