.net - Entity Framework 5.0 Code First マッピング例外

Question

[NotMapped] 属性ですべての非プリミティブをマークした次のクラスがあります。それでも、次のエラーが引き続き発生します。

私は使っている：

• VS 2010 SP1
• .Net 4.0 (C#) - WinForms
• Entity Framework 5.0 コード ファースト
• SQL コンパクト (CE) 3.5

The type 'MySolution.Core.Blob' was not mapped. Check that the type has not been explicitly excluded by using the Ignore method or NotMappedAttribute data annotation. Verify that the type was defined as a class, is not primitive, nested or generic, and does not inherit from EntityObject.

[System.ComponentModel.DataAnnotations.Schema.Table("Blob")]
public partial class Blob
{
    [System.ComponentModel.DataAnnotations.Schema.NotMapped]
    private AForge.Imaging.Blob BlobInternal { get; set; }

    public Blob ()
    {
        this.BlobInternal = new AForge.Imaging.Blob(0, new System.Drawing.Rectangle());
    }

    public Blob (int id, System.Drawing.Rectangle rect)
    {
        this.BlobInternal = new AForge.Imaging.Blob(id, rect);
    }

    public Blob (AForge.Imaging.Blob source)
    {
        this.BlobInternal = new AForge.Imaging.Blob(source);
    }

    [System.ComponentModel.DataAnnotations.Schema.Column("OriginalSize")]
    public bool OriginalSize { get { return (this.BlobInternal.OriginalSize); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("Id")]
    public int Id { get { return (this.BlobInternal.ID); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("Area")]
    public int Area { get { return (this.BlobInternal.Area); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("Fullness")]
    public double Fullness { get { return (this.BlobInternal.Fullness); } }

    [System.ComponentModel.DataAnnotations.Schema.NotMapped]
    public AForge.Point CenterOfGravity { get { return (this.BlobInternal.CenterOfGravity); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("CenterOfGravityX")]
    public float CenterOfGravityX { get { return (this.BlobInternal.CenterOfGravity.X); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("CenterOfGravityY")]
    public float CenterOfGravityY { get { return (this.BlobInternal.CenterOfGravity.Y); } }

    [System.ComponentModel.DataAnnotations.Schema.NotMapped]
    public System.Drawing.Rectangle Rectangle { get { return (this.BlobInternal.Rectangle); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("RectangleX")]
    public int RectangleX { get { return (this.BlobInternal.Rectangle.X); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("RectangleY")]
    public int RectangleY { get { return (this.BlobInternal.Rectangle.Y); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("RectangleW")]
    public int RectangleW { get { return (this.BlobInternal.Rectangle.Width); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("RectangleH")]
    public int RectangleH { get { return (this.BlobInternal.Rectangle.Height); } }

    [System.ComponentModel.DataAnnotations.Schema.NotMapped]
    public System.Drawing.Color ColorMean { get { return (this.BlobInternal.ColorMean); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorMeanA")]
    public byte ColorMeanA { get { return (this.BlobInternal.ColorMean.A); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorMeanR")]
    public byte ColorMeanR { get { return (this.BlobInternal.ColorMean.R); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorMeanG")]
    public byte ColorMeanG { get { return (this.BlobInternal.ColorMean.G); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorMeanB")]
    public byte ColorMeanB { get { return (this.BlobInternal.ColorMean.B); } }

    [System.ComponentModel.DataAnnotations.Schema.NotMapped]
    public System.Drawing.Color ColorStdDev { get { return (this.BlobInternal.ColorStdDev); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorStdDevA")]
    public byte ColorStdDevA { get { return (this.BlobInternal.ColorStdDev.A); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorStdDevR")]
    public byte ColorStdDevR { get { return (this.BlobInternal.ColorStdDev.R); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorStdDevG")]
    public byte ColorStdDevG { get { return (this.BlobInternal.ColorStdDev.G); } }

    [System.ComponentModel.DataAnnotations.Schema.Column("ColorStdDevB")]
    public byte ColorStdDevB { get { return (this.BlobInternal.ColorStdDev.B); } }

    [System.ComponentModel.DataAnnotations.Schema.NotMapped]
    public AForge.Imaging.UnmanagedImage Image { get { return (this.BlobInternal.Image); } }
}