NHibernate.MappingException: Could not compile the mapping

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

Hello,

I am new to NHibernate. I made al little example but alway get an NHibernate.MappingException (see at the end). I could not solve my problem with forum and google.

Here are the facts:

Hibernate version: 2.0.0.1001

Mapping documents:

Storage.hbm.xml -> marked as embeded Resource in VS 2005

Code:

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.0">
  <class name="DBHibernate.Storage, DBHibernate" table="STORAGE">
    <id name="Id" column="STORAGE_ID" type="int">
      <generator class="assigned" />
    </id>
    <property name="Tower" column="TOWER" type="Int" length="40"/>
    <property name="Side" type="String" length="40"/>
    <property name="Area" type="Int"/>
    <property name="Tray" type="String" length="40"/>
    <property name="Size" type="Int"/>
  </class>
</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():

Code:

            Configuration cfg = new Configuration();
            cfg.AddAssembly("DBHibernate");

            ISessionFactory factory = cfg.BuildSessionFactory();
            ISession session = factory.OpenSession();

            Storage test = (Storage)session.Load(typeof(Storage), 2);
            
            
            ITransaction transaction = session.BeginTransaction();

            
            IList storList = session.CreateCriteria(typeof(Storage)).List();
            foreach (Storage stor in storList)
            {
                System.Diagnostics.Debug.WriteLine(stor.Tower + stor.Area + stor.Side);
            }
...

Name and version of the database you are using:

Oracle 10g
asdbtest

Debug level Hibernate log excerpt:
ALL

.net Class Storage.cs:

Code:

using System;
using System.Collections.Generic;
using System.Text;

namespace DBHibernate
{
    public class Storage
    {
        private int id;
        private int tower;
        private string side;
        private int area;
        private string tray;
        private int size;

        public Storage() 
        { 
        }

        public int Id
        {
            get { return id; }
            set { id = value; }
        }

        public int Tower
        {
            get { return tower; }
            set { tower = value; }
        }

        public string Side
        {
            get { return side; }
            set { side = value; }
        }

        public int Area
        {
            get { return area; }
            set { area = value; }
        }

        public string Tray
        {
            get { return tray; }
            set { tray = value; }
        }

        public int Size
        {
            get { return size; }
            set { size = value; }
        }

    }
}

Full stack trace of any exception that occurs:

Quote:

78 [10] INFO NHibernate.Cfg.Environment (null) - NHibernate 2.0.0.1001 (2.0.0.10
01)
109 [10] INFO NHibernate.Cfg.Environment (null) - hibernate-configuration sectio
n not found in application configuration file
109 [10] INFO NHibernate.Cfg.Environment (null) - Bytecode provider name : lcg
109 [10] INFO NHibernate.Cfg.Environment (null) - Using reflection optimizer
125 [10] INFO NHibernate.Cfg.Configuration (null) - Searching for mapped documen
ts in assembly: DBHibernate
125 [10] INFO NHibernate.Cfg.Configuration (null) - Mapping resource: DBHibernat
e.Storage.hbm.xml
156 [10] ERROR NHibernate.Cfg.Configuration (null) - Could not compile the mappi
ng document: DBHibernate.Storage.hbm.xml
NHibernate.MappingException: Could not compile the mapping document: DBHibernate
.Storage.hbm.xml ---> System.Collections.Generic.KeyNotFoundException: Der angeg
ebene Schlüssel war nicht im Wörterbuch angegeben.
bei System.ThrowHelper.ThrowKeyNotFoundException()
bei System.Collections.Generic.Dictionary`2.get_Item(TKey key)
bei NHibernate.Dialect.Dialect.GetDialect(IDictionary`2 props) in c:\DATA\Pro
jects\nhibernate\2.0.x\copy1\nhibernate\src\NHibernate\Dialect\Dialect.cs:Zeile
173.
bei NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument doc) i
n c:\DATA\Projects\nhibernate\2.0.x\copy1\nhibernate\src\NHibernate\Cfg\Configur
ation.cs:Zeile 428.
--- Ende der internen Ausnahmestapelüberwachung ---

typhos · **Joined:** Thu Mar 06, 2008 5:06 am **Posts:** 68

Hi,
take the type "Int32" for your integer columns.

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

typhos wrote:

Hi,
take the type "Int32" for your integer columns.

Thanks for your quick help, but it doesn't work.

I get the same Exception.

wolli · **Posted:** Fri May 09, 2008 7:18 am

Sounds like hibernate has a problem finding the dialect. Can you post your configuration ? What dialect do you use ?

Quote:

156 [10] ERROR NHibernate.Cfg.Configuration (null) - Could not compile the mappi
ng document: DBHibernate.Storage.hbm.xml
NHibernate.MappingException: Could not compile the mapping document: DBHibernate
.Storage.hbm.xml ---> System.Collections.Generic.KeyNotFoundException: Der angeg
ebene Schlüssel war nicht im Wörterbuch angegeben.
bei System.ThrowHelper.ThrowKeyNotFoundException()
bei System.Collections.Generic.Dictionary`2.get_Item(TKey key)
bei NHibernate.Dialect.Dialect.GetDialect(IDictionary`2 props) in c:\DATA\Pro
jects\nhibernate\2.0.x\copy1\nhibernate\src\NHibernate\Dialect\Dialect.cs:Zeile
173.
bei NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument doc) i
n c:\DATA\Projects\nhibernate\2.0.x\copy1\nhibernate\src\NHibernate\Cfg\Configur
ation.cs:Zeile 428.

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

wolli wrote:

Sounds like hibernate has a problem finding the dialect. Can you post your configuration ? What dialect do you use ?

Quote:

156 [10] ERROR NHibernate.Cfg.Configuration (null) - Could not compile the mappi
ng document: DBHibernate.Storage.hbm.xml
NHibernate.MappingException: Could not compile the mapping document: DBHibernate
.Storage.hbm.xml ---> System.Collections.Generic.KeyNotFoundException: Der angeg
ebene Schlüssel war nicht im Wörterbuch angegeben.
bei System.ThrowHelper.ThrowKeyNotFoundException()
bei System.Collections.Generic.Dictionary`2.get_Item(TKey key)
bei NHibernate.Dialect.Dialect.GetDialect(IDictionary`2 props) in c:\DATA\Pro
jects\nhibernate\2.0.x\copy1\nhibernate\src\NHibernate\Dialect\Dialect.cs:Zeile
173.
bei NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument doc) i
n c:\DATA\Projects\nhibernate\2.0.x\copy1\nhibernate\src\NHibernate\Cfg\Configur
ation.cs:Zeile 428.

Hello here ist my configuration:

Quote:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section
name="nhibernate"
type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
/>
</configSections>

<nhibernate>
<add
key="hibernate.connection.provider"
value="NHibernate.Connection.DriverConnectionProvider"
/>
<add
key="hibernate.dialect"
value="NHibernate.Dialect.Oracle9Dialect"
/>
<add
key="hibernate.connection.driver_class"
value="NHibernate.Driver.OracleDataClientDriver"
/>
<add
key="hibernate.connection.connection_string"
value="Data source=***@ip/dbname; User Id=***;Password=***;"
/>
</nhibernate>
</configuration>

wolli · **Posted:** Tue May 13, 2008 7:38 am

I just tried your mapping and your class and typhos was right, you either have to use type "int" or "Int32". Try this mapping:

Code:

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.0">
  <class name="DBHibernate.Storage, DBHibernate" table="STORAGE">
    <id name="Id" column="STORAGE_ID" type="int">
      <generator class="assigned" />
    </id>
    <property name="Tower" column="TOWER" type="int" length="40"/>
    <property name="Side" type="String" length="40"/>
    <property name="Area" type="int"/>
    <property name="Tray" type="String" length="40"/>
    <property name="Size" type="int"/>
  </class>
</hibernate-mapping> 

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

wolli wrote:

I just tried your mapping and your class and typhos was right, you either have to use type "int" or "Int32". Try this mapping:

Code:

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.0">
  <class name="DBHibernate.Storage, DBHibernate" table="STORAGE">
    <id name="Id" column="STORAGE_ID" type="int">
      <generator class="assigned" />
    </id>
    <property name="Tower" column="TOWER" type="int" length="40"/>
    <property name="Side" type="String" length="40"/>
    <property name="Area" type="int"/>
    <property name="Tray" type="String" length="40"/>
    <property name="Size" type="int"/>
  </class>
</hibernate-mapping> 

Thanks for your help, but now there is another problem:

I get a key not found exception in class Dialect.cs (line 173) instead of a defined primary key in the table storage on the DB. Is this Problem on the DB or on my Hibernate Code.

The logging Output is:

Quote:

78 [10] INFO NHibernate.Cfg.Environment (null) - NHibernate 2.0.0.1001 (2.0.0.10
01)
109 [10] INFO NHibernate.Cfg.Environment (null) - hibernate-configuration sectio
n not found in application configuration file
109 [10] INFO NHibernate.Cfg.Environment (null) - Bytecode provider name : lcg
109 [10] INFO NHibernate.Cfg.Environment (null) - Using reflection optimizer
125 [10] INFO NHibernate.Cfg.Configuration (null) - Searching for mapped documen
ts in assembly: DBHibernate
125 [10] INFO NHibernate.Cfg.Configuration (null) - checking mappings queue
125 [10] INFO NHibernate.Cfg.Configuration (null) - processing one-to-many assoc
iation mappings
125 [10] INFO NHibernate.Cfg.Configuration (null) - processing one-to-one associ
ation property references
125 [10] INFO NHibernate.Cfg.Configuration (null) - processing foreign key const
raints

[/quote]

wolli · **Posted:** Tue May 13, 2008 9:32 am

Quote:

109 [10] INFO NHibernate.Cfg.Environment (null) - hibernate-configuration section not found in application configuration file

Are you sure, that you're config is really used ? Check if it's flagged as "Embedded Resource". Do you use App.config/Web.config or a separate hibernate.cfg.xml file ?

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

wolli wrote:

Quote:

109 [10] INFO NHibernate.Cfg.Environment (null) - hibernate-configuration section not found in application configuration file

Are you sure, that you're config is really used ? Check if it's flagged as "Embedded Resource". Do you use App.config/Web.config or a separate hibernate.cfg.xml file ?

How can I check what config file is really used?

In my code I use the App.config an it is flagged as "Embedded Resource".

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

kumpfi wrote:

wolli wrote:

Quote:

109 [10] INFO NHibernate.Cfg.Environment (null) - hibernate-configuration section not found in application configuration file

Are you sure, that you're config is really used ? Check if it's flagged as "Embedded Resource". Do you use App.config/Web.config or a separate hibernate.cfg.xml file ?

How can I check what config file is really used?

In my code I use the App.config an it is flagged as "Embedded Resource".

Hello now if found in another example of nhibernate another App-config. I got this file and fit it to my project:

Code:

<configuration>
  <configSections>
    <section
      name="hibernate-configuration"
      type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"
    />
  </configSections>
  <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
    <session-factory>
      <property name="connection.provider">
        NHibernate.Connection.DriverConnectionProvider
      </property>
      <property name="connection.driver_class">NHibernate.Driver.OracleDataClientDriver</property>
      <property name="dialect">NHibernate.Dialect.Oracle9Dialect</property>
      <property name="default_schema">XXXXXX</property>
      <property name="connection.connection_string">Data source=XXXXXXXXX;User Id=XXXXXX;Password=XXXXXX;</property>
      <property name="show_sql">true</property>
      <mapping assembly="DBHibernate" />
    </session-factory>
  </hibernate-configuration>
</configuration>

Now the hibernate-config Section is not found info is no longer present.

But i got a lot of exception i shoult declare the methodes in my Storage.cs class as virtual. Why do i have to do this? I don't think, that this is right, but i have done ist to see what happens.

I got the following log output:

78 [10] INFO NHibernate.Cfg.Environment (null) - NHibernate 2.0.0.1001 (2.0.0.10
01)
109 [10] INFO NHibernate.Cfg.Environment (null) - Bytecode provider name : lcg
109 [10] INFO NHibernate.Cfg.Environment (null) - Using reflection optimizer
140 [10] INFO NHibernate.Cfg.Configuration (null) - Searching for mapped documen
ts in assembly: DBHibernate
140 [10] INFO NHibernate.Cfg.Configuration (null) - Mapping resource: DBHibernat
e.Storage.hbm.xml
187 [10] INFO NHibernate.Dialect.Dialect (null) - Using dialect: NHibernate.Dial
ect.Oracle9Dialect
1000 [10] INFO NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapping class: DBHib
ernate.Storage -> STORAGE
1015 [10] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapped property: Id
-> STORAGE_ID, type: Int32
1031 [10] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapped property: To
wer -> TOWER, type: Int32
1031 [10] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapped property: Si
de -> Side, type: String
1031 [10] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapped property: Ar
ea -> Area, type: Int32
1031 [10] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapped property: Tr
ay -> Tray, type: String
1031 [10] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder (null) - Mapped property: Size -> Size, type: Int32
1046 [10] INFO NHibernate.Cfg.Configuration (null) - checking mappings queue
1046 [10] INFO NHibernate.Cfg.Configuration (null) - processing one-to-many asso
ciation mappings
1046 [10] INFO NHibernate.Cfg.Configuration (null) - processing one-to-one assoc
iation property references
1046 [10] INFO NHibernate.Cfg.Configuration (null) - processing foreign key cons
traints
1062 [10] INFO NHibernate.Dialect.Dialect (null) - Using dialect: NHibernate.Dialect.Oracle9Dialect
1062 [10] INFO NHibernate.Exceptions.SQLExceptionConverterFactory (null) - Using
dialect defined converter
1062 [10] INFO NHibernate.Connection.ConnectionProviderFactory (null) - Initializing connection provider:
NHibernate.Connection.DriverConnectionProvider
1062 [10] INFO NHibernate.Connection.ConnectionProvider (null) - Configuring Con
nectionProvider
1078 [10] ERROR NHibernate.Util.ReflectHelper (null) - Could not load type Oracle.DataAccess.Client.OracleConnection, Oracle.DataAccess.
System.IO.FileNotFoundException: Could not load file or assembly 'Oracle.DataAcc
ess' or one of its dependencies. The system cannot find the file specified.
File name: 'Oracle.DataAccess'
at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase,
Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Bool
ean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence
assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence as
semblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.Load(String assemblyString)
at NHibernate.Util.ReflectHelper.TypeFromAssembly(AssemblyQualifiedTypeName n
ame, Boolean throwOnError) in D:\Projekte\ExternalDLLs\hibernate\HibSrc\src\NHib
ernate\Util\ReflectHelper.cs:line 260

=== Pre-bind state information ===
LOG: User = XXXXXXXXXXXXXXXXXXX
LOG: DisplayName = Oracle.DataAccess
(Partial)
LOG: Appbase = file:///D:/Projekte/Scheibenlager/Projekt_VS/TestHibernate/TestHi
bernate/bin/Debug/
LOG: Initial PrivatePath = NULL
Calling assembly : NHibernate, Version=2.0.0.1001, Culture=neutral, PublicKeyTok
en=aa95f207798dfdb4.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: D:\Projekte\Scheibenlager\Projekt_VS\
TestHibernate\TestHibernate\bin\Debug\DBHibernate.vshost.exe.config
LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: The same bind was seen before, and was failed with hr = 0x80070002.

1109 [10] ERROR NHibernate.Util.ReflectHelper (null) - Could not load type Oracle.DataAccess.Client.OracleCommand, Oracle.DataAccess.
System.IO.FileNotFoundException: Could not load file or assembly 'Oracle.DataAccess' or one of its dependencies. The system cannot find the file specified.
File name: 'Oracle.DataAccess'
at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase,
Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence
assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence as
semblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
at System.Reflection.Assembly.Load(String assemblyString)
at NHibernate.Util.ReflectHelper.TypeFromAssembly(AssemblyQualifiedTypeName n
ame, Boolean throwOnError) in D:\Projekte\ExternalDLLs\hibernate\HibSrc\src\NHibernate\Util\ReflectHelper.cs:line 260

=== Pre-bind state information ===
LOG: User = XXXXXXXXXXXXXXXXXXXX
LOG: DisplayName = Oracle.DataAccess
(Partial)
LOG: Appbase = file:///D:/Projekte/Scheibenlager/Projekt_VS/TestHibernate/TestHibernate/bin/Debug/
LOG: Initial PrivatePath = NULL
Calling assembly : NHibernate, Version=2.0.0.1001, Culture=neutral, PublicKeyTok
en=aa95f207798dfdb4.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: D:\Projekte\Scheibenlager\Projekt_VS\
TestHibernate\TestHibernate\bin\Debug\DBHibernate.vshost.exe.config
LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework\v2
.0.50727\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partia
l, or location-based assembly bind).
LOG: The same bind was seen before, and was failed with hr = 0x80070002.

wolli · **Posted:** Wed May 14, 2008 3:27 am

Back to square one, I get the same log message in my application. So this doesn't seem to be the problem, but I just found this and I think you use 2.0.x:

http://forum.hibernate.org/viewtopic.php?t=985289

Quote:

Initialization time

* <nhibernate> section is ignored, using <hibernate-configuration> section (note that they have different XML formats)
* Configuration values are no longer prefixed by "hibernate.", if before you would specify "hibernate.dialect", now you specify just "dialect"

According to this, you have to use this format:

Code:

<configSections>
     <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate" />
</configSections>

   <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
      <bytecode-provider type="lcg"/>
      <reflection-optimizer use="true"/>
      <session-factory name="NHibernate.Test">
         <property name="connection.provider">NHibernate.Test.DebugConnectionProvider, NHibernate.Test</property>
         <property name="cache.provider_class">NHibernate.Cache.HashtableCacheProvider, NHibernate</property>
         <property name="cache.use_query_cache">true</property>
         <property name="prepare_sql">false</property>
         <property name="query.startup_check">false</property>
         <!-- 
            The valid strings for Isolation can be found in the documentation for the System.Data.IsolationLevel
            Enumeration documentation.
            Use the member names - not the values.
         -->
         <property name="connection.isolation">ReadCommitted</property>

         <!-- This is the System.Data.dll provider for MSSQL Server -->
         <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
         <property name="connection.connection_string">
            Server=(local);initial catalog=nhibernate;Integrated Security=SSPI
         </property>
         <property name="show_sql">false</property>
         <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property>
         <property name="use_outer_join">true</property>
         <property name="command_timeout">444</property>
         <property name="query.substitutions">true 1, false 0, yes 'Y', no 'N'</property>
         <property name="adonet.wrap_result_sets">false</property>
      </session-factory>
   </hibernate-configuration>

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

wolli wrote:

Back to square one, I get the same log message in my application. So this doesn't seem to be the problem, but I just found this and I think you use 2.0.x:

http://forum.hibernate.org/viewtopic.php?t=985289

Quote:

Initialization time

* <nhibernate> section is ignored, using <hibernate-configuration> section (note that they have different XML formats)
* Configuration values are no longer prefixed by "hibernate.", if before you would specify "hibernate.dialect", now you specify just "dialect"

According to this, you have to use this format:

Code:

<configSections>
     <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate" />
</configSections>

   <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
      <bytecode-provider type="lcg"/>
      <reflection-optimizer use="true"/>
      <session-factory name="NHibernate.Test">
         <property name="connection.provider">NHibernate.Test.DebugConnectionProvider, NHibernate.Test</property>
         <property name="cache.provider_class">NHibernate.Cache.HashtableCacheProvider, NHibernate</property>
         <property name="cache.use_query_cache">true</property>
         <property name="prepare_sql">false</property>
         <property name="query.startup_check">false</property>
         <!-- 
            The valid strings for Isolation can be found in the documentation for the System.Data.IsolationLevel
            Enumeration documentation.
            Use the member names - not the values.
         -->
         <property name="connection.isolation">ReadCommitted</property>

         <!-- This is the System.Data.dll provider for MSSQL Server -->
         <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
         <property name="connection.connection_string">
            Server=(local);initial catalog=nhibernate;Integrated Security=SSPI
         </property>
         <property name="show_sql">false</property>
         <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property>
         <property name="use_outer_join">true</property>
         <property name="command_timeout">444</property>
         <property name="query.substitutions">true 1, false 0, yes 'Y', no 'N'</property>
         <property name="adonet.wrap_result_sets">false</property>
      </session-factory>
   </hibernate-configuration>

Hello Wolfgang,

i did it like zu told me an i am at the beginning of the thread. I have the following output of logger:

Quote:

93 [10] INFO NHibernate.Cfg.Environment (null) - NHibernate 2.0.0.1001 (2.0.0.10
01)
125 [10] INFO NHibernate.Cfg.Environment (null) - hibernate-configuration sectio
n not found in application configuration file
125 [10] INFO NHibernate.Cfg.Environment (null) - Bytecode provider name : lcg
125 [10] INFO NHibernate.Cfg.Environment (null) - Using reflection optimizer
171 [10] INFO NHibernate.Cfg.Configuration (null) - Searching for mapped documen
ts in assembly: DBHibernate
171 [10] INFO NHibernate.Cfg.Configuration (null) - Mapping resource: DBHibernat
e.Storage.hbm.xml
218 [10] ERROR NHibernate.Cfg.Configuration (null) - Could not compile the mappi
ng document: DBHibernate.Storage.hbm.xml
NHibernate.MappingException: Could not compile the mapping document: DBHibernate
.Storage.hbm.xml ---> System.Collections.Generic.KeyNotFoundException: The given
key was not present in the dictionary.
at System.ThrowHelper.ThrowKeyNotFoundException()
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at NHibernate.Dialect.Dialect.GetDialect(IDictionary`2 props) in D:\Projekte\
ExternalDLLs\hibernate\HibSrc\src\NHibernate\Dialect\Dialect.cs:line 173
at NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument doc) in
D:\Projekte\ExternalDLLs\hibernate\HibSrc\src\NHibernate\Cfg\Configuration.cs:l
ine 428
--- End of inner exception stack trace ---

wolli · **Posted:** Wed May 14, 2008 4:49 am

Quote:

But i got a lot of exception i shoult declare the methodes in my Storage.cs class as virtual. Why do i have to do this? I don't think, that this is right, but i have done ist to see what happens.

This is because of hibernate defaults to lazy loading. You can turn lazy loading off on your class with lazy="false".

kumpfi · **Joined:** Thu May 08, 2008 3:14 am **Posts:** 16

wolli wrote:

Quote:

But i got a lot of exception i shoult declare the methodes in my Storage.cs class as virtual. Why do i have to do this? I don't think, that this is right, but i have done ist to see what happens.

This is because of hibernate defaults to lazy loading. You can turn lazy loading off on your class with lazy="false".

Doing lazy="false" has no effect. I get the same exception.
I am sorry, but meanwhile i think i am too stupid using nhibernate, in my mind it is a simple expample and i don't get it running.

wolli · **Posted:** Wed May 14, 2008 5:07 am

Since we discussed a lot of changes, can you repost the current configuration and mapping ?