title: The specified store provider cannot be found in the configuration, or is not valid
body: <p>i use entity framwork with SQL Server CE 3.5 and i have this error </p>
  
  <p><strong>The specified store provider cannot be found in the configuration, or is not valid.</strong></p>
  
  <pre><code>&lt;Schema Namespace="OimDBModel.Store" Alias="Self" Provider="System.Data.SqlServerCe.3.5" ProviderManifestToken="3.5" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2009/02/edm/ssdl"&gt;
      &lt;EntityContainer Name="OimDBModelStoreContainer"&gt;
        &lt;EntitySet Name="OfflineMessages" EntityType="OimDBModel.Store.OfflineMessages" store:Type="Tables" /&gt;
      &lt;/EntityContainer&gt;
    &lt;/Schema&gt;&lt;/edmx:StorageModels&gt;
  </code></pre>