Error con Aspecto -Modelo

<?xml version="1.0" encoding="UTF-8"?> 
<!-- Custom Model --> 
<!-- Note: This model is pre-configured to load at startup of the Repository.  So, all custom --><!--       types and aspects added here will automatically be registered --> 
<model name="custom:customModel" xmlns="http://www.alfresco.org/model/dictionary/1.0"> 
   <!-- Optional meta-data about the model --><description>Custom Model</description><author></author><version>1.0</version> 
   <imports><!-- Import Alfresco Dictionary Definitions --><import uri="http://www.alfresco.org/model/dictionary/1.0" prefix="d"/><!-- Import Alfresco Content Domain Model Definitions --><import uri="http://www.alfresco.org/model/content/1.0" prefix="cm"/></imports> 
   <!-- Introduction of new namespaces defined by this model --><!-- NOTE: The following namespace custom.model should be changed to reflect your own namespace --><namespaces><namespace uri="custom.model" prefix="custom"/></namespaces> 
 
<types> 
	<type name ="custom:modelo"> 
		<title>Registro de Asociaciones</title> 
			<parent>cm:content</parent><properties><property name="cont:parteContratada"><title>Parte contratada</title><type>d:text</type><mandatory>false</mandatory></property><property name="cont:dni"><title>DNI</title><type>d:text</type><mandatory>false</mandatory></property></properties> 
             <mandatory-aspects> 
				<aspect>custom:aspectTest</aspect> 
			</mandatory-aspects> 
 </type> 
 
 
 </types><aspects><aspect name ="custom:aspectTest"> 
	<title>Titulo</title> 
		<properties> 
				<property name ="custom:campo1"> 
					<title>campo 1</title> 
					<type>d:text</type> 
			</property> 
		    	<property name ="custom:campo2"> 
					<title>campos  2</title> 
					<type>d:text</type> 
			</property> 
 
		</properties> 
 
 
</aspect> 
</aspects> 
</model><code>============================================================================================================
Error: 
 
Caused by: org.alfresco.service.cmr.dictionary.DictionaryException: 06290001 Could not import bootstrap model alfresco/extension/customModel.xml
	at org.alfresco.repo.dictionary.DictionaryBootstrap.onDictionaryInit(DictionaryBootstrap.java:159)
	at org.alfresco.repo.dictionary.DictionaryBootstrap.bootstrap(DictionaryBootstrap.java:105)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1639)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1580)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1510)
	... 26 more
Caused by: org.alfresco.service.cmr.dictionary.DictionaryException: 06290000 Failed to parse model
	at org.alfresco.repo.dictionary.M2Model.createModel(M2Model.java:102)
	at org.alfresco.repo.dictionary.M2Model.createModel(M2Model.java:88)
	at org.alfresco.repo.dictionary.DictionaryBootstrap.onDictionaryInit(DictionaryBootstrap.java:148)
	... 34 more
Caused by: org.jibx.runtime.JiBXException: Expected "{http://www.alfresco.org/model/dictionary/1.0}aspect" end tag, found "{http://www.alfresco.org/model/dictionary/1.0}appearance" start tag (line 120, col 15)
	at org.jibx.runtime.impl.UnmarshallingContext.parsePastCurrentEndTag(UnmarshallingContext.java:731)
	at org.alfresco.repo.dictionary.JiBX_defaultM2Aspect_access.unmarshal()
	at org.alfresco.repo.dictionary.JiBX_defaultMungeAdapter.JiBX_default_unmarshal_1_8()
	at org.alfresco.repo.dictionary.JiBX_defaultMungeAdapter.JiBX_default_unmarshal_1_9()
	at org.alfresco.repo.dictionary.JiBX_defaultM2Model_access.unmarshal()
	at org.jibx.runtime.impl.UnmarshallingContext.unmarshalElement(UnmarshallingContext.java:2757)
	at org.jibx.runtime.impl.UnmarshallingContext.unmarshalDocument(UnmarshallingContext.java:2900)
	at org.alfresco.repo.dictionary.M2Model.createModel(M2Model.java:97)
	... 36 more
 
 
 
 
 
Si quito mi aspecto dentro de mi modelo no me da el error pero quisiera usar un aspecto para efecto de mejores practicas.