|  03-13-2021, 03:40 AM | #1 | 
| Junior Member  Posts: 1 Karma: 10 Join Date: Mar 2021 Device: Kindle | 
				
				ERROR ITMS-9000: Wrong namespace
			 
			
			Hello, I have an epub file I got this errors when published on apple platorm. How can I fix this errors. I'm using Sigil. ERROR ITMS-9000: Wrong namespace in /OEBPS/chapter13a.xhtml : null - expecting http://www.w3.org/1999/xhtml ERROR ITMS-9000: OEBPS/chapter1.xhtml(1): [HTM-049] Html element does not have an xmlns set to 'http://www.w3.org/1999/xhtml'.. This error occurs 22 times. (For more information refer to http://support.apple.com/kb/HT6213) ERROR ITMS-9000: OEBPS/chapter1.xhtml(1): [RSC-005] Error while parsing file: elements from namespace "" are not allowed. This error occurs 22 times. (For more information refer to http://support.apple.com/kb/HT6213) | 
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|  03-13-2021, 08:35 AM | #2 | 
| Sigil Developer            Posts: 9,071 Karma: 6361556 Join Date: Nov 2009 Device: many | 
			
			Use Sigil's  Reformat HTML menu to Mend ALL HTML files to add in the missing xhtml attribute xmlns="http://www.w3.org/1999/xhtml" to each html tags in all of your xhtml files.
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|  03-13-2021, 09:35 AM | #3 | 
| mostly an observer            Posts: 1,519 Karma: 996810 Join Date: Dec 2012 Device: Kindle | 
			
			Apple uses Epubcheck, so even though others haven't flagged the errors, the errors are indeed there. So it's best to validate your epubs before you upload them to any distributor. There's an Epubcheck plug-in for Sigil, or you can download Epubcheck to your computer.
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