Asp.net mvc NHibernate引发的映射异常

我有以下型号：

    <id  name="Id" column="LocationID" type="int" unsaved-value="0">
      <generator class="native" />
    </id>
    <property name="City">
      <column name="City" 
              sql-type="varchar(150)" not-null="true" />
    </property>
    <property name="Country">
      <column name="Country" 
              sql-type="varchar(50)" not-null="true" />
    </property>
    <property name="Zipcode">
      <column name="Zipcode" 
              sql-type="varchar(50)" not-null="false" />
    </property>
    <property name="StreetNameNumber">
      <column name="StreetNameNumber" 
              sql-type="varchar(150)" not-null="false" />
    </property>
    <property name="WorldRegion">
      <column name="WorldRegion" 
              sql-type="varchar(100)" not-null="false" />
    </property>
  </class>
</hibernate-mapping>

天气预报：

    <id  name="Id" column="LocationID" type="int" unsaved-value="0">
      <generator class="native" />
    </id>
    <property name="City">
      <column name="City" 
              sql-type="varchar(150)" not-null="true" />
    </property>
    <property name="Country">
      <column name="Country" 
              sql-type="varchar(50)" not-null="true" />
    </property>
    <property name="Zipcode">
      <column name="Zipcode" 
              sql-type="varchar(50)" not-null="false" />
    </property>
    <property name="StreetNameNumber">
      <column name="StreetNameNumber" 
              sql-type="varchar(150)" not-null="false" />
    </property>
    <property name="WorldRegion">
      <column name="WorldRegion" 
              sql-type="varchar(100)" not-null="false" />
    </property>
  </class>
</hibernate-mapping>

当我运行程序时，我得到：

    <id  name="Id" column="LocationID" type="int" unsaved-value="0">
      <generator class="native" />
    </id>
    <property name="City">
      <column name="City" 
              sql-type="varchar(150)" not-null="true" />
    </property>
    <property name="Country">
      <column name="Country" 
              sql-type="varchar(50)" not-null="true" />
    </property>
    <property name="Zipcode">
      <column name="Zipcode" 
              sql-type="varchar(50)" not-null="false" />
    </property>
    <property name="StreetNameNumber">
      <column name="StreetNameNumber" 
              sql-type="varchar(150)" not-null="false" />
    </property>
    <property name="WorldRegion">
      <column name="WorldRegion" 
              sql-type="varchar(100)" not-null="false" />
    </property>
  </class>
</hibernate-mapping>

WeatherForecasts表中的关联表示未映射的类：

    <id  name="Id" column="LocationID" type="int" unsaved-value="0">
      <generator class="native" />
    </id>
    <property name="City">
      <column name="City" 
              sql-type="varchar(150)" not-null="true" />
    </property>
    <property name="Country">
      <column name="Country" 
              sql-type="varchar(50)" not-null="true" />
    </property>
    <property name="Zipcode">
      <column name="Zipcode" 
              sql-type="varchar(50)" not-null="false" />
    </property>
    <property name="StreetNameNumber">
      <column name="StreetNameNumber" 
              sql-type="varchar(150)" not-null="false" />
    </property>
    <property name="WorldRegion">
      <column name="WorldRegion" 
              sql-type="varchar(100)" not-null="false" />
    </property>
  </class>
</hibernate-mapping>

TravelAssistant.Model.HelperModels.Weather.LocationBase

---

有人能告诉我哪里弄错了吗

尝试对WeatherForecast映射上的多对一关联使用完全限定类名

    <id  name="Id" column="LocationID" type="int" unsaved-value="0">
      <generator class="native" />
    </id>
    <property name="City">
      <column name="City" 
              sql-type="varchar(150)" not-null="true" />
    </property>
    <property name="Country">
      <column name="Country" 
              sql-type="varchar(50)" not-null="true" />
    </property>
    <property name="Zipcode">
      <column name="Zipcode" 
              sql-type="varchar(50)" not-null="false" />
    </property>
    <property name="StreetNameNumber">
      <column name="StreetNameNumber" 
              sql-type="varchar(150)" not-null="false" />
    </property>
    <property name="WorldRegion">
      <column name="WorldRegion" 
              sql-type="varchar(100)" not-null="false" />
    </property>
  </class>
</hibernate-mapping>

<many-to-one     
    name="ForecastLocation"
    cascade="all"
    class="TravelAssistant.Model.HelperModels.Location.LocationBase, TravelAssistant.Model"
    column="LocationID"
    not-null="false"   />