Must specify either 'defaultFieldType' or declare one typeMapping as default

[Ronald Roeleveld]

Hi there,
I'm a totally newb when it comes to Solr, I'm just trying to learn and
teach myself new skills so please bear with me.

I'm following a tutorial online:
https://lobster1234.github.io/2017/08/14/search-with-nutch-mongodb-solr/

Since this tutorial is somewhat outdated I've changed some things to
use current versions which is why I'm now running into issues.
In order to solve any issues I've searched online and mostly solved
everything with bits and pieces here and there. This part I can't seem
to solve though.

I've added a schema.xml and changed the solrconfig.xml as described in
the tutorial and while Solr does start it gives me the following error
message:

mycol1: 
org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:
Must specify either 'defaultFieldType' or declare one typeMapping as
default.

I've had errors before related to outdated lines in schema.xml but I
was able to fix those (I think).

This is my current schema.xml

-------------
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="ph_config" version="1.6">
<field name="id" type="string" indexed="true" stored="true"
required="true" multiValued="false" />
    <field name="one" type="string" indexed="true" stored="true" />
    <field name="two" type="string" indexed="true" stored="true"
multiValued="true"/>
    <field name="three" type="string" indexed="true" stored="true" />
    <!-- docValues are enabled by default for long type so we don't
need to index the version field  -->
    <field name="_version_" type="plong" indexed="false" stored="false"/>
    <field name="_root_" type="string" indexed="true" stored="false"
docValues="false" />
    <field name="_text_" type="text_general" indexed="true"
stored="false" multiValued="true"/>
    <uniqueKey>id</uniqueKey>
<fieldType name="string" class="solr.StrField" sortMissingLast="true"
docValues="true" />
    <fieldType name="plong" class="solr.LongPointField" docValues="true"/>
    <fieldType name="text_general" class="solr.TextField"
positionIncrementGap="100" multiValued="true">
      <analyzer type="index">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" />
        <!-- in this example, we will only use synonyms at query time
        <filter class="solr.SynonymGraphFilterFactory"
synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
        <filter class="solr.FlattenGraphFilterFactory"/>
        -->
        <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
      <analyzer type="query">
        <tokenizer class="solr.StandardTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" />
        <filter class="solr.SynonymGraphFilterFactory"
synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
        <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
    </fieldType>
    <fieldType name="booleans" class="solr.BoolField"
sortMissingLast="true" multiValued="true"/>
    <fieldType name="pdates" class="solr.DatePointField"
docValues="true" multiValued="true"/>
    <fieldType name="plongs" class="solr.LongPointField"
docValues="true" multiValued="true"/>
    <fieldType name="pdoubles" class="solr.DoublePointField"
docValues="true" multiValued="true"/>
</schema>

--------------

I hope someone is able to get me started with this. I'd like to learn
but it feels like a really steep hill to climb.

Kind regards,
Ronald.