Foreign key (FK2BED736C71ADB01A:EMPO.FK_LIC_TCH__REF_83747_LICENSE) must have same number of columns as the referenced primary key LICENSE

iam getting error like above
below are my mapping files

<?xml version="1.0" encoding="utf-8"?>
<hibernate-mapping assembly="CGI.ESG.TEMPO.DomainEntity" namespace="CGI.ESG.TEMPO.DomainEntity" xmlns="urn:nhibernate-mapping-2.2">
<class name="LICENSE" table="LICENSE" lazy="true" >
<composite-id name="Keys" class="LicenseKey">
<key-property name="MASTER_LICENSE_ID" column="MASTER_LICENSE_ID" />
<key-property name="INT_DOC_ID" column="INT_DOC_ID" />
</composite-id>
<many-to-one name="MTB_EL_LICENSE_TYPE" class="MTB_EL_LICENSE_TYPE" insert="true" update="true">
<column name="ACTIVITY_TYPE_CODE" sql-type="CHAR" not-null="true" />
<column name="ACTIVITY_CLASS_CODE" sql-type="CHAR" not-null="true" />
<column name="PROGRAM_CODE" sql-type="CHAR" not-null="true" />
<column name="ACTIVITY_CATEGORY_CODE" sql-type="CHAR" not-null="true" />
</many-to-one>

<property name="UPGRADED_LICENSE_ID">
<column name="UPGRADED_LICENSE_ID" sql-type="NUMBER" not-null="false" />
</property>

<many-to-one name="AGENCY_INTEREST" class="AGENCY_INTEREST" insert="true" update="true">
<column name="MASTER_AI_ID" sql-type="NUMBER" not-null="true" />
<column name="AI_INT_DOC_ID" sql-type="NUMBER" not-null="true" />
</many-to-one>

<many-to-one name="MTB_EL_EXEMPTION_TYPE" class="MTB_EL_EXEMPTION_TYPE" insert="true" update="true">
<column name="EXEMPTION_TYPE_CODE" sql-type="VARCHAR2" not-null="false" />
</many-to-one>

<property name="ACTIVITY_YEAR">
<column name="ACTIVITY_YEAR" sql-type="NUMBER" not-null="true" />
</property>
<property name="ACTIVITY_NUM">
<column name="ACTIVITY_NUM" sql-type="NUMBER" not-null="true" />
</property>
<property name="APPLICATION_FLAG">
<column name="APPLICATION_FLAG" sql-type="CHAR" not-null="false" />
</property>
<property name="ELIGIBLE_FOR_RENEWAL_FLAG">
<column name="ELIGIBLE_FOR_RENEWAL_FLAG" sql-type="CHAR" not-null="false" />
</property>
<property name="TCH_START_DATE">
<column name="TCH_START_DATE" sql-type="DATE" not-null="false" />
</property>
<property name="TCH_END_DATE">
<column name="TCH_END_DATE" sql-type="DATE" not-null="false" />
</property>
<property name="INSTRUCTOR_NAME">
<column name="INSTRUCTOR_NAME" sql-type="VARCHAR2" not-null="false" />
</property>
<property name="EMPLOYER_NAME">
<column name="EMPLOYER_NAME" sql-type="VARCHAR2" not-null="false" />
</property>
<property name="USER_LAST_UPDT">
<column name="USER_LAST_UPDT" sql-type="VARCHAR2" not-null="true" />
</property>
<property name="TMSP_LAST_UPDT">
<column name="TMSP_LAST_UPDT" sql-type="DATE" not-null="true" />
</property>
<property name="USER_CREATED">
<column name="USER_CREATED" sql-type="VARCHAR2" not-null="true" />
</property>
<property name="TMSP_CREATED">
<column name="TMSP_CREATED" sql-type="DATE" not-null="true" />
</property>
<bag name="LIC_OPERATOR_AI_XREFS" inverse="true" cascade="none">
<key>
<column name="MASTER_LICENSE_ID" sql-type="NUMBER" not-null="true" />
<column name="INT_DOC_ID" sql-type="NUMBER" not-null="true"/>
</key>
<one-to-many class="LIC_OPERATOR_AI_XREF" />
</bag>
<!--<bag name="LIC_TCH_EVENT_ROSTERS" inverse="true" cascade="none" >
<key>
<column name="TCH_ID" sql-type="NUMBER" not-null="true" />
<column name="SEQUENCE_NUM" sql-type="NUMBER" not-null="true"/>
</key>
<one-to-many class="LIC_TCH_EVENT_ROSTER" />
</bag>-->
</class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8"?>
<hibernate-mapping assembly="CGI.ESG.TEMPO.DomainEntity" namespace="CGI.ESG.TEMPO.DomainEntity" xmlns="urn:nhibernate-mapping-2.2">
<class name="LIC_TCH_EVENT_ROSTER" table="LIC_TCH_EVENT_ROSTER" lazy="true" >
<composite-id name="Keys" class="EventRosterKey">
<key-property name="TCH_ID" column="TCH_ID" />
<key-property name="SEQUENCE_NUM" column="SEQUENCE_NUM" />
</composite-id>
<property name="MASTER_AI_ID">
<column name="MASTER_AI_ID" sql-type="NUMBER" not-null="false" />
</property>

<many-to-one name="LICENSE" class="LICENSE" lazy="false" insert="false" update="false">
<column name="MASTER_LICENSE_ID" sql-type="NUMBER" not-null="false" />
<column name="INT_DOC_ID" sql-type="NUMBER" not-null="false" />
</many-to-one>
<property name="AI_INT_DOC_ID">
<column name="AI_INT_DOC_ID" sql-type="NUMBER" not-null="false" />
</property>
<property name="MASTER_LICENSE_ID">
<column name="MASTER_LICENSE_ID" sql-type="NUMBER" not-null="false" />
</property>
<property name="INT_DOC_ID">
<column name="INT_DOC_ID" sql-type="NUMBER" not-null="false" />
</property>
<property name="CREDIT_HOURS">
<column name="CREDIT_HOURS" sql-type="NUMBER" not-null="false" />
</property>
<property name="APPLIED_HOURS">
<column name="APPLIED_HOURS" sql-type="NUMBER" not-null="false" />
</property>
<property name="NON_CERTIFIED_FLAG">
<column name="NON_CERTIFIED_FLAG" sql-type="VARCHAR2" not-null="false" />
</property>
<property name="USER_LAST_UPDT">
<column name="USER_LAST_UPDT" sql-type="VARCHAR2" not-null="true" />
</property>
<property name="TMSP_LAST_UPDT">
<column name="TMSP_LAST_UPDT" sql-type="DATE" not-null="true" />
</property>
<property name="USER_CREATED">
<column name="USER_CREATED" sql-type="VARCHAR2" not-null="true" />
</property>
<property name="TMSP_CREATED">
<column name="TMSP_CREATED" sql-type="DATE" not-null="true" />
</property>
</class>
</hibernate-mapping>

LIC_TCH_EVENT_ROSTER hbm file many-to-one mapping is wrong. you need to map with the composite-id class

<many-to-one name="LICENSE" class="LICENSE" lazy="false" insert="false" update="false">
<column name="MASTER_LICENSE_ID" sql-type="NUMBER" not-null="false" />
<column name="INT_DOC_ID" sql-type="NUMBER" not-null="false" />
</many-to-one>

i do not have composite ids and could you please correct my mapping file