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We have validate an ePub files in the epubcheck-3.0.1 version in windows 8.1 system, and we received below error message in the epub files. could you please help for us?

ERROR: 9088098774672.epub: Mimetype entry missing or not the first in archive Validating against EPUB version 3.0

Check finished with warnings or errors

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This error is not related to Windows itself. This means that ePub file is bad compressed. Decompress this file and compress it via this tool ePubPack

  • We have properly compressed in the ePub file in windows 8 machine. but we received the same error in the epubchecker 3.0.1. Can you please try in windows 8 machine and let me know the solution? – Prabhu Feb 20 '15 at 8:00
  • I check it an minute ago and it is working. – Glorifind Feb 20 '15 at 8:38

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