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我似乎有一个无法在我的 Windows 测试环境中复制的 Mono 问题，在该环境中我得到一个如下所示的 YSOD：

Server Error in '/' Application

Object reference not set to an instance of an object

Description: HTTP 500. Error processing request.

Stack Trace:

System.NullReferenceException: Object reference not set to an instance of an object
  at FluentNHibernate.Visitors.DefaultMappingModelVisitor.Visit (FluentNHibernate.MappingModel.ColumnMapping columnMapping) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.MappingModel.KeyMapping.AcceptVisitor (IMappingModelVisitor visitor) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Visitors.DefaultMappingModelVisitor.Visit (FluentNHibernate.MappingModel.KeyMapping keyMapping) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.MappingModel.ClassBased.SubclassMapping.AcceptVisitor (IMappingModelVisitor visitor) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Visitors.DefaultMappingModelVisitor.Visit (FluentNHibernate.MappingModel.ClassBased.SubclassMapping subclassMapping) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.MappingModel.ClassBased.ClassMappingBase.AcceptVisitor (IMappingModelVisitor visitor) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.MappingModel.ClassBased.ClassMapping.AcceptVisitor (IMappingModelVisitor visitor) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Visitors.DefaultMappingModelVisitor.Visit (FluentNHibernate.MappingModel.ClassBased.ClassMapping classMapping) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.MappingModel.HibernateMapping.AcceptVisitor (IMappingModelVisitor visitor) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Visitors.DefaultMappingModelVisitor.<Visit>b__0 (FluentNHibernate.MappingModel.HibernateMapping x) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Utils.CollectionExtensions.Each[HibernateMapping] (IEnumerable`1 enumerable, System.Action`1 each) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Visitors.DefaultMappingModelVisitor.Visit (IEnumerable`1 mappings) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.PersistenceModel.ApplyVisitors (IEnumerable`1 mappings) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.PersistenceModel.BuildMappings () [0x00000] in <filename unknown>:0 
  at FluentNHibernate.PersistenceModel.EnsureMappingsBuilt () [0x00000] in <filename unknown>:0 
  at FluentNHibernate.PersistenceModel.Configure (NHibernate.Cfg.Configuration cfg) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Cfg.MappingConfiguration.Apply (NHibernate.Cfg.Configuration cfg) [0x00000] in <filename unknown>:0 
  at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration () [0x00000] in <filename unknown>:0 
Version information: Mono Runtime Version: 2.10.8.1 (Debian 2.10.8.1-1ubuntu2.2); ASP.NET Version: 4.0.30319.1

我正在挠头如何解决这个问题。标准调试工具明显缺失。是否有一些机制来收集行号和上下文信息来研究这个问题？

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1 回答 1

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好的，我想通了，但这里的答案太长了。我在这里写了一篇博客（是的，我承认这是一个杂牌）。

于 2012-10-09T02:39:56.230 回答