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POEF 4 Code First: Model compatibility cannot be checked because the EdmMetadata type was not included in the model
 

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    <p>I am trying to use EF 4 Code First pattern. My initialization code is as follows:</p> <p>Create Model Builder:</p> <pre><code>private static DbModelBuilder CreateModelBuild() { var builder = new DbModelBuilder(); //add entity classes about 12 of them builder.Conventions.Remove&lt;IncludeMetadataConvention&gt;(); return builder; } </code></pre> <p>Create session:</p> <pre><code>private bool BuildSqlServerSession(DbModelBuilder builder) { var model = builder.Build(new SqlConnection(@"connection string")); var cm = model.Compile(); var context = new LittlePOSContext(cm); var dbExists = context.Database.Exists(); _session = new EFSession(context); return dbExists; } </code></pre> <p>This works when I run the code for first time. But when running on second time and trying to add an object using <code>context.Add(myEntity)</code> I get following exception:</p> <pre><code>Model compatibility cannot be checked because the EdmMetadata type was not included in the model. Ensure that IncludeMetadataConvention has been added to the DbModelBuilder conventions. </code></pre> <p>I have tried removing following line:</p> <pre><code>builder.Conventions.Remove&lt;IncludeMetadataConvention&gt;(); </code></pre> <p>but I still get the error.</p>
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