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Problem :

Currently I am trying to learn the Apache Maven. I have tried to write below code in Eclipse but it is giving below error to me:

Error Message:

“No grammar constraints (DTD or XML Schema) referenced in the document”

My Code :
<project xmlns="http://maven.apache.org/POM/4.0.0"



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1 Answer

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Solution :

I have faced this error earlier and I fixed it using below procedure

In your eclipse IDE to avoid the below message

 "No grammar constraints (dtd or xml schema) detected for the document."

I added the xsd schema file to a xml catalog under below path

"Go to Window \ preferences \ xml \ xml catalog \ User specified entries".

Then you need to click on "Add" button on your right.

<?xml version="1.0" encoding="UTF-8"?>
<HolidayRequest xmlns="http://mycompany.com/hr/schemas">

From above xml I had generated and then saved the xsd under below location: /home/my_user/xsd/my_xsd.xsd

As Location: /home/my_user/xsd/my_xsd.xsd

As key type: Namespace name

As key: http://mycompany.com/hr/schemas

After doing above steps you can close and then reopen the xml file and do some changes to violate the schema, you should be notified

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