asp.net-mvc-5 - Sitecore glass 可编辑无法转换 lambda 表达式

Question

我正在使用 Sitecore 7.5、MVC 5.2 和 Glass Mapper 3.2。

在渲染中使用 Editable() 时，Visual Studio 中会显示以下错误，即使它在使用站点和/或页面编辑器时正确渲染。我是否缺少参考资料或其他内容？

错误：
“无法将 lambda 表达式转换为类型 'System.Linq.Expressions.Expression>'，因为它不是委托类型”

看法

@using Sitecore.Mvc
@using Sitecore.Mvc.Presentation

@inherits Glass.Mapper.Sc.Web.Mvc.GlassView<Air.SitecoreModels.Metadata>

@*<h1>@Model.Item.Name </h1>*@

<h2>@Editable(x => x.BrowserTitle)</h2>

模型（使用 TDS 自动生成）

[SitecoreType(TemplateId=IMetadataConstants.TemplateIdString )] //, Cachable = true 
public partial interface IMetadata : IGlassBase 
{
    /// <summary>
    /// The BrowserTitle field.
    /// <para></para>
    /// <para>Field Type: Single-Line Text</para>       
    /// <para>Field ID: 82cb07ca-0f04-442e-9a42-641d71540b35</para>
    /// <para>Custom Data: </para>
    /// </summary>
    [SitecoreField(IMetadataConstants.BrowserTitleFieldName)]
    string BrowserTitle  {get; set;}

                /// <summary>
    /// The PageTitle field.
    /// <para></para>
    /// <para>Field Type: Single-Line Text</para>       
    /// <para>Field ID: 462e2170-1157-4e9d-92dc-0d5da2956c44</para>
    /// <para>Custom Data: </para>
    /// </summary>
    [SitecoreField(IMetadataConstants.PageTitleFieldName)]
    string PageTitle  {get; set;}

}


[SitecoreType(TemplateId=IMetadataConstants.TemplateIdString, AutoMap=true)] //, Cachable = true
public partial class Metadata  : GlassBase, IMetadata 
{

    /// <summary>
    /// The BrowserTitle field.
    /// <para></para>
    /// <para>Field Type: Single-Line Text</para>       
    /// <para>Field ID: 82cb07ca-0f04-442e-9a42-641d71540b35</para>
    /// <para>Custom Data: </para>
    /// </summary>
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Team Development for Sitecore - GlassItem.tt", "1.0")]
    [SitecoreField(IMetadataConstants.BrowserTitleFieldName)]
    public virtual string BrowserTitle  {get; set;}

            /// <summary>
    /// The PageTitle field.
    /// <para></para>
    /// <para>Field Type: Single-Line Text</para>       
    /// <para>Field ID: 462e2170-1157-4e9d-92dc-0d5da2956c44</para>
    /// <para>Custom Data: </para>
    /// </summary>
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Team Development for Sitecore - GlassItem.tt", "1.0")]
    [SitecoreField(IMetadataConstants.PageTitleFieldName)]
    public virtual string PageTitle  {get; set;}                        
}