MANAGED DRIVER WITH EF REPORTING "The specified store provider cannot be found in the configuration, or is not valid" EXCEPTION (Doc ID 1939339.1)

Last updated on NOVEMBER 19, 2019

Applies to:

Symptoms

.NET application built with Managed ODP.NET driver and 32 bit EF in AnyCPU mode.  After deploying to 64bit target machine where Managed ODP.NET configured to 64bit reporting following error on application run.

The specified store provider cannot be found in the configuration, or is not valid. at System.Data.EntityClient.EntityConnection.GetFactory(String providerString)
  at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString)
  at System.Data.EntityClient.EntityConnection..ctor(String connectionString)
  at System.Data.Entity.Internal.LazyInternalConnection.Initialize()
  at System.Data.Entity.Internal.LazyInternalConnection.CreateObjectContextFromConnectionModel()
  at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
  at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)
  at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()
  at System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext()
  at System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider()
  at System.Linq.Queryable.OrderBy[TSource,TKey](IQueryable`1 source, Expression`1 keySelector)
  at DistEngr.DAO.DBRepository.GetAllSubcategories()

Cause

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