[GitHub] [maven-site] dadon-david commented on pull request #200: Fix Create the archetype descriptor example

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dadon-david commented on pull request #200:
URL: https://github.com/apache/maven-site/pull/200#issuecomment-695781151


   Hi @michael-o :)
   
   Thank you for your rapid response,
   
   Maybe I didn't explained my PR enough, sorry if this is the case.
   
   On the existing `maven-archetype-quickstart` the `targetNamespace` on the 
XSD match the `xmlns` on the XML . So I thought it would solve my problem. 
[Source code 
here](https://github.com/apache/maven-archetypes/blob/maven-archetype-bundles-1.4/maven-archetype-quickstart/src/main/resources/META-INF/maven/archetype-metadata.xml)
   
   ```
   <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
xmlns="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0";
 elementFormDefault="qualified" 
targetNamespace="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0";>
   ```
   
   ```
   <archetype-descriptor 
xmlns="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0";
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
     
xsi:schemaLocation="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-descriptor/1.0.0
 http://maven.apache.org/xsd/archetype-descriptor-1.0.0.xsd";
     name="quickstart" partial="false">
   ```
   
   The reason why I am opening this PR is because, without having 
`targetNamespace` and `xmlns` that match my IDE (IDEA 2020.2) can't find the 
associated schema and is in error (See the image below)
   
   I tried to fix this, to register it and to change many settings on the IDE 
side without success.
   
   And simply changing the namespace solved my issue.
   
   Maybe I miss something obvious or maybe it's a bug on IDEA.
   
   I've read a bit about XML and Namespace before opening this PR, maybe 
misunderstood something.
   
   In any case I would love to have a small explanation from you,
   
   With `targetNamespace` != `xmlns`
   
![image](https://user-images.githubusercontent.com/8955104/93710540-fb902880-fb47-11ea-9503-d2cbf49217e8.png)
   
   
   With `targetNamespace` == `xmlns`
   
![image](https://user-images.githubusercontent.com/8955104/93711197-9c80e280-fb4c-11ea-8336-4b40f3377288.png)
   


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