Answers.Body: <p>In sheer desperation, I tried using Calibre to convert it from ePub to Mobi, and then converted the Mobi back to ePub - which seems to have worked. I will probably not mark this answer as accepted, in hopes that someone can come up with a better answer and/or an explanation of just what was going on with the original ePub.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-09-27T13:34:59.973Z
Answers.LastActivityDate: 2024-09-27T13:34:59.973Z
Answers.UserDisplayName: Jeff Zeitlin
Answers.Body: <p>It's probably using some kind of shortened call to the manifest. There are numerous ways to do that. Evidently completely unnecessary that it happens since epub--&gt;mobi--&gt;epub fixed it. But to find what it is specifically  I would have to take a look at the problem epub -- if so I would then expand my own epub knowledge and yours, could be fun. If it's something that needs remain private I understand as well, just thought I'd offer.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-10-15T11:47:19.443Z
Answers.LastActivityDate: 2024-10-15T11:47:19.443Z
Answers.UserDisplayName: tufted_titmouse_nwk
Body: <p>I am using the Cantook ebook reader (formerly Aldiko) on a Samsung Galaxy Tab S8. Most of the epub files I have will open just fine; however, I’m getting an error with one file that I can’t get around:</p>
  <pre><code>OpenError.ProfilesNotSupported: Cannot open a publication with profiles: [Profile(uri=https://readium.org/webpub-manifest/profiles/epub)]
  </code></pre>
  <p>When I open this with Calibre’s reader/editor, I can’t find any reference to that URL.  The Calibre library manager recognizes it as epub, and the reader has no trouble opening it.</p>
  <p>There is no DRM on the file; I can do as I please to it - but I have no idea what I need to do to make this file readable by Cantook (beyond &quot;remove the profile&quot; somehow), or how to do it.</p>
  <p>Advice?</p>
  
Tags: <epub><calibre><file-format>
Title: How do I fix this epub file? (Remove "profile" that prevents opening in Cantook)
UserDisplayName: Jeff Zeitlin
ThreadText: # How do I fix this epub file? (Remove "profile" that prevents opening in Cantook)
  
  (Asked by: username_0 on 2024-09-19)
  
  I am using the Cantook ebook reader (formerly Aldiko) on a Samsung Galaxy Tab S8. Most of the epub files I have will open just fine; however, I’m getting an error with one file that I can’t get around:
  OpenError.ProfilesNotSupported: Cannot open a publication with profiles: [Profile(uri=https://readium.org/webpub-manifest/profiles/epub)]
  
  When I open this with Calibre’s reader/editor, I can’t find any reference to that URL.  The Calibre library manager recognizes it as epub, and the reader has no trouble opening it.
  There is no DRM on the file; I can do as I please to it - but I have no idea what I need to do to make this file readable by Cantook (beyond "remove the profile" somehow), or how to do it.
  Advice?
  
  **Tags:** epub, calibre, file-format
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2024-09-27. Score: 2
  
  In sheer desperation, I tried using Calibre to convert it from ePub to Mobi, and then converted the Mobi back to ePub - which seems to have worked. I will probably not mark this answer as accepted, in hopes that someone can come up with a better answer and/or an explanation of just what was going on with the original ePub.
  
  
  ---
  
  ### Answer by username_1 on 2024-10-15. Score: 0
  
  It's probably using some kind of shortened call to the manifest. There are numerous ways to do that. Evidently completely unnecessary that it happens since epub-->mobi-->epub fixed it. But to find what it is specifically I would have to take a look at the problem epub -- if so I would then expand my own epub knowledge and yours, could be fun. If it's something that needs remain private I understand as well, just thought I'd offer.
  
  
  ---
  
  