here is the error i am getting during migration

[2020-02-26 07:12:10][ERROR]: Incompatibility in data. Source document: eav_attribute. Field: source_model. Error: Class eav/entity_attribute_source_custom is not mapped in record attribute_id=563

I tried to use the below code in class-map.xml but not worked. and I also chaned the class-map.xml.dist to class-map.xml.

 <?xml version="1.0" encoding="UTF-8"?>

<!-- /** * Copyright © 2013-2017 Magento, Inc. All rights reserved. * See COPYING.txt for license details. */ -->

<classmap xs:noNamespaceSchemaLocation="../class-map.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance">


<from>eav/entity_attribute_source_custom </from>




the error I am getting after change the name of class-map.xml is

Invalid map filename



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