Magento data migration tool - source and destination documetns are not mapped?

Question

I'm currently trying to migrate from M1 to M2 using the data migration tool provided by magento. After configuring config.xml and running the command:

php bin/magento migrate:settings --reset vendor/magento/data-migration-tool/etc/opensource-to-opensource/1.9.3.8/config.xml

I receive the following errors:

[2020-02-26 15:27:26][ERROR]: Source documents are not mapped: core_store,core_store_group,core_website
[2020-02-26 15:27:26][ERROR]: Destination documents are not mapped: store,store_group,store_website

I've checked my config for map.xml.dist and I've checked my map.xml.dist for ignoring the documents, so I'm confused and need help.

Anyone pls?

My config.xml changes:

    <source>
    <database host="127.0.0.1" name="somename" user="someuser" password="somepassword"/>
</source>
<destination>
    <database host="127.0.0.1" name="somename" user="someuser" password="somepassword"/>
</destination>

<map_file>etc/opensource-to-opensource/1.9.3.8/map.xml</map_file>
<crypt_key>somekey</crypt_key>

Database m1 screenshot:

Database m2 screenshot:

SOLUTION: Apparently I switched the names between my m1 db name and my m2 db name in my config.xml.

Answer 1

Your issues is source_prefix and dest_prefix error.

You add the source prefix.

Open the config.xml file and search the source_prefix and add the your magento 1 database source prefix

Ex:-

<source_prefix>add the magento 1 database prefix</source_prefix>
<dest_prefix>Optional</dest_prefix>

Answer 2

Rename Magento 1 table with Magento 2 in map.xml.dist file.

<?xml version="1.0" encoding="UTF-8"?>
<map xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs:noNamespaceSchemaLocation="map.xsd">
    <source>
        <document_rules>
            <rename>
                <document>core_store</document>
                <to>store</to>
            </rename>
            <rename>
                <document>core_store_group</document>
                <to>store_group</to>
            </rename>
            <rename>
                <document>core_website</document>
                <to>store_website</to>
            </rename>
        </document_rules>
    </source>
</map>