System.Data.Entity.Core.EntityException: The underlying provider failed on Open. ---> Devart.Data.Oracle.OracleException: ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist IBM AIX RISC System/6000 Error: 2: No such file or directory at Devart.Data.Oracle.al.d() at Devart.Data.Oracle.aq.a() at Devart.Data.Oracle.ch.a(ds A_0, bn A_1) at Devart.Data.Oracle.OracleInternalConnection..ctor(ds connectionOptions, OracleInternalConnection proxyConnection) at Devart.Data.Oracle.dz.a(o A_0, Object A_1, DbConnectionBase A_2) at Devart.Common.DbConnectionFactory.a(DbConnectionPool A_0, o A_1, DbConnectionBase A_2) at Devart.Common.DbConnectionPool.a(DbConnectionBase A_0) at Devart.Common.DbConnectionPool.GetObject(DbConnectionBase owningConnection) at Devart.Common.DbConnectionFactory.b(DbConnectionBase A_0) at Devart.Common.DbConnectionClosed.Open(DbConnectionBase outerConnection) at Devart.Common.DbConnectionBase.Open() at Devart.Data.Oracle.OracleConnection.Open() at System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.<Open>b__36(DbConnection t, DbConnectionInterceptionContext c) at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext](TTarget target, Action`2 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed) at System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext) at System.Data.Entity.Core.EntityClient.EntityConnection.<Open>b__2() at System.Data.Entity.Infrastructure.DefaultExecutionStrategy.Execute(Action operation) at System.Data.Entity.Core.EntityClient.EntityConnection.Open() --- End of inner exception stack trace --- at System.Data.Entity.Core.EntityClient.EntityConnection.Open() at System.Data.Entity.Core.Objects.ObjectContext.EnsureConnection(Boolean shouldMonitorTransactions) at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess) at System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClass7.<GetResults>b__5() at System.Data.Entity.Infrastructure.DefaultExecutionStrategy.Execute[TResult](Func`1 operation) at System.Data.Entity.Core.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption) at System.Data.Entity.Core.Objects.ObjectQuery`1.<System.Collections.Generic.IEnumerable<T>.GetEnumerator>b__0() at System.Data.Entity.Internal.LazyEnumerator`1.MoveNext() at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source) at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__3[TResult](IEnumerable`1 sequence) at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot) at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression expression) at System.Linq.Queryable.Any[TSource](IQueryable`1 source, Expression`1 predicate) at PlataformaSPF.Dal.Configuracion.TramiteCategoriaDal.ExisteVariableRuta(String variableRuta) at PlataformaSPF.Bl.Configuracion.TramiteCategoriaBl.ObtenerRegistro(String categoriaVariableRuta) at PlataformaSPF.Controllers.TramitesController.VerCategoria(String categoria)