Title: XML error validation for namespaces missing
Last modified: March 12, 2020

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# XML error validation for namespaces missing

 *  Resolved [robertosalemi](https://wordpress.org/support/users/robertosalemi/)
 * (@robertosalemi)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/xml-error-validation-for-namespaces-missing/)
 * Hi,
    i created my XML feed for TrovaPrezzi.it.
 * I try to validate it on [https://validator.w3.org](https://validator.w3.org),
   but I received the following error:
    _Schema Error: XML document with no namespace;
   cannot determine any schema to use for validation._
 * My XML starts with:
 *     ```
       <products version="1.0" standalone="yes">
       <datetime>2020-03-12 22:38:08</datetime>
       <title>TrovaPrezzi.it</title>
       <link>https://www.ricambisinger.it</link>
       <description>
       WooCommerce Product Feed PRO - This product feed is created with the free Advanced Product Feed PRO for WooCommerce plugin from AdTribes.io. For all your support questions check out our FAQ on https://www.adtribes.io or e-mail to: support@adtribes.io
       </description>
       ```
   
 * maybe the xmlns tag is missing?
 * Can I fix this error?
 * Thanks.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [supportadtribes](https://wordpress.org/support/users/supportadtribes/)
 * (@supportadtribes)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/xml-error-validation-for-namespaces-missing/#post-12539634)
 * Hi,
 * Namespaces are optional and according to TrovaPrezzi’s requirements their XML
   feeds don’t need a namespace in it. Have you submitted your feed to TrovaPrezzi
   and did they disapprove of the feed?
 * _[ [Signature deleted](https://wordpress.org/support/guidelines/#do-not-spam)]_
    -  This reply was modified 6 years, 2 months ago by [Jan Dembowski](https://wordpress.org/support/users/jdembowski/).
 *  Thread Starter [robertosalemi](https://wordpress.org/support/users/robertosalemi/)
 * (@robertosalemi)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/xml-error-validation-for-namespaces-missing/#post-12540675)
 * Yes, the XML is correct! Namespace is not required for TrovaPrezzi.it
 * Thanks!
 *  [supportadtribes](https://wordpress.org/support/users/supportadtribes/)
 * (@supportadtribes)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/xml-error-validation-for-namespaces-missing/#post-12540683)
 * Perfect, glad we could help.
 * _[ [Signature moderated](https://wordpress.org/support/guidelines/#do-not-spam)]_
    -  This reply was modified 6 years, 2 months ago by [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/).

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘XML error validation for namespaces missing’ is closed to new replies.

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 * 3 replies
 * 2 participants
 * Last reply from: [supportadtribes](https://wordpress.org/support/users/supportadtribes/)
 * Last activity: [6 years, 2 months ago](https://wordpress.org/support/topic/xml-error-validation-for-namespaces-missing/#post-12540683)
 * Status: resolved