Hi , i've just download the latest version of umbraco (4.9) and the free version of uCommerce.

I wanna test this ecommerce platform , but when i try to install the package umbraco report this error:

Keyword not supported: 'datalayer'.

[ArgumentException: Keyword not supported: 'datalayer'.]
   System.Data.Common.DbConnectionOptions.ParseInternal(Hashtable parsetable, String connectionString, Boolean buildChain, Hashtable synonyms, Boolean firstKey) +5327300
   System.Data.Common.DbConnectionOptions..ctor(String connectionString, Hashtable synonyms, Boolean useOdbcRules) +95
   System.Data.SqlClient.SqlConnectionString..ctor(String connectionString) +59
   System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String connectionString, DbConnectionOptions previous) +24
   System.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(DbConnectionPoolKey key, DbConnectionPoolGroupOptions poolOptions, DbConnectionOptions& userConnectionOptions) +167
   System.Data.SqlClient.SqlConnection.ConnectionString_Set(DbConnectionPoolKey key) +61
   System.Data.SqlClient.SqlConnection.set_ConnectionString(String value) +66
   NHibernate.Connection.DriverConnectionProvider.GetConnection() +112
   NHibernate.Tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.Prepare() +14
   NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.GetReservedWords(Dialect dialect, IConnectionHelper connectionHelper) +84
   NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.Update(ISessionFactory sessionFactory) +78
   NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping mapping, Settings settings, EventListeners listeners) +621
   NHibernate.Cfg.Configuration.BuildSessionFactory() +104
   FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() +41

[FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

]
   FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() +61
   UCommerce.EntitiesV2.SessionProvider.CreateSessionFactory(Boolean enableCache, String cacheProvider) +468
   UCommerce.EntitiesV2.SessionProvider.GetSession() +160
   UCommerce.EntitiesV2.Repository`1..ctor(ISessionProvider sessionProvider) +16

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0
   System.Reflection.RuntimeConstructorInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +303
   Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.FastCreateInstance(Type implType, Object[] arguments, Type[] signature) +83
   Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, Object[] arguments, Type[] signature) +167

[ComponentActivatorException: ComponentActivator: could not instantiate UCommerce.EntitiesV2.Repository`1[[UCommerce.EntitiesV2.Role, UCommerce, Version=3.0.0.12290, Culture=neutral, PublicKeyToken=null]]]
   Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance(CreationContext context, Object[] arguments, Type[] signature) +320
   Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context) +59
   Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context) +20
   Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context) +16
   Castle.MicroKernel.Lifestyle.PerWebRequestLifestyleManager.Resolve(CreationContext context) +127
   Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired) +93
   Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context, Boolean instanceRequired) +17
   Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context) +12
   Castle.MicroKernel.Handlers.DefaultGenericHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired) +124
   Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context, Boolean instanceRequired) +17
   Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context) +12
   Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments) +83
   Castle.MicroKernel.DefaultKernel.Resolve(Type service) +53
   Castle.Windsor.WindsorContainer.Resolve() +61
   UCommerce.Infrastructure.ObjectFactory.Resolve() +78
   UCommerce.EntitiesV2.Role.GetRepo() +38
   UCommerce.Umbraco.Installer.PostInstaller.InstallPermissionSet() +10
   UCommerce.Umbraco.Installer.PostInstaller.Page_Load(Object sender, EventArgs e) +130
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +92
   System.Web.UI.Control.LoadRecursive() +54
   System.Web.UI.Control.LoadRecursive() +145
   System.Web.UI.Control.LoadRecursive() +145
   System.Web.UI.Control.LoadRecursive() +145
   System.Web.UI.Control.LoadRecursive() +145
   System.Web.UI.Control.LoadRecursive() +145
   System.Web.UI.Control.LoadRecursive() +145
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772                         

Any information about this problem? How to fix?.

Thanks.