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POASP.NET EF code first: One or more validation errors were detected during model generation
 

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  1. POASP.NET EF code first: One or more validation errors were detected during model generation
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    <p>Having some issues with my relationships. A Campaign has pages, a page has a CssFile. When I query all the Campaigns from the database the error (see below) gets thrown.</p> <pre><code>public IQueryable&lt;Campaign&gt; FindAll() { return campaigns.Include(c =&gt; c.Pages).AsQueryable(); } public class Page { [Key()] public int Id { get; set; } public string Logo { get; set; } public string LogoAlt { get; set; } public string Title { get; set; } public string Description { get; set; } public string Footer { get; set; } [ForeignKey("CssFile")] public int CssFileId { get; set; } public virtual CssFile CssFile { get; set; } [ForeignKey("Campaign")] public int CampaignId { get; set; } public virtual Campaign Campaign { get; set; } public Page() { CssFile = new CssFile(this, "default.css"); CssFileId = CssFile.CssFileId; } public override bool Equals(object obj) { if (!(obj is Page)) return false; return ((Page)obj).Id == this.Id; } public override int GetHashCode() { return base.GetHashCode(); } } public class CssFile { public const string PATH = "../../Uploads/"; [Key()] public int CssFileId { get; set; } public string FileName { get; set; } public string Content { get; set; } [ForeignKey("Page")] public int PageId { get; set; } public virtual Page Page { get; set; } public CssFile() { FileName = "default.css"; Content = ""; } public CssFile(Page page, string name, string content) { Page = page; PageId = page.Id; this.FileName = name; this.Content = content; } public CssFile(Page page, string name) { Page = page; PageId = page.Id; this.FileName = name; Content = ""; } } </code></pre> <p>Error:</p> <blockquote> <p>One or more validation errors were detected during model generation:</p> <p>System.Data.Edm.EdmAssociationEnd: : Multiplicity is not valid in Role 'Page_CssFile_Target' in relationship 'Page_CssFile'. Because the Dependent Role properties are not the key properties, the upper bound of the multiplicity of the Dependent Role must be �*�.</p> <p>Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. </p> <p>Exception Details: System.Data.Entity.ModelConfiguration.ModelValidationException: One or more validation errors were detected during model generation:</p> <p>System.Data.Edm.EdmAssociationEnd: : Multiplicity is not valid in Role 'Page_CssFile_Target' in relationship 'Page_CssFile'. Because the Dependent Role properties are not the key properties, the upper bound of the multiplicity of the Dependent Role must be �*�.</p> </blockquote>
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    1. PTQuestion
    1. This table or related slice is empty.
    1. USReinard
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      1. POASP.NET EF code first: One or more validation errors were detected during model generation
      1. USShegit Brahm
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    1. COCould you fix the �*�? (looks like ?*?)
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      1. POASP.NET EF code first: One or more validation errors were detected during model generation
      1. USGert Arnold
    2. CO@GertArnold there is nothing to fix, always looks like this in my errors.
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      1. POASP.NET EF code first: One or more validation errors were detected during model generation
      1. USReinard
 

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