{"id":6054,"date":"2024-05-30T15:04:54","date_gmt":"2024-05-30T07:04:54","guid":{"rendered":"https:\/\/www.alfredivy.sg\/blogger\/?p=6054"},"modified":"2024-05-30T15:04:54","modified_gmt":"2024-05-30T07:04:54","slug":"calibre-error-communicating-with-device","status":"publish","type":"post","link":"https:\/\/www.alfredivy.sg\/blogger\/2024\/05\/calibre-error-communicating-with-device\/","title":{"rendered":"Calibre: Error communicating with device"},"content":{"rendered":"\n<p>Calibre: error communicating with device, failed to find obfuscation key is due to encrypted fonts.  Calibre&#8217;s KoboTouchExtended plugin was unable to locate the key to decrypt the embedded fonts to convert the EPUB file to KEPUB.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>The full error message goes like this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ERROR: Error: Error communicating with device\n\nFailed to find obfuscation key\n\nTraceback (most recent call last):\n\nFile \"site-packages\\calibre\\gui2\\device.py\", line 89, in run\n\nFile \"site-packages\\calibre\\gui2\\device.py\", line 593, in _upload_books\n\nFile \"calibre_plugins.kobotouch_extended.device.driver\", line 399, in upload_books\n\nFile \"site-packages\\calibre\\devices\\kobo\\driver.py\", line 2087, in upload_books\n\nFile \"calibre_plugins.kobotouch_extended.device.driver\", line 206, in _modify_epub\n\nFile \"site-packages\\calibre\\ebooks\\oeb\\polish\\container.py\", line 1184, in __init__\n\nFile \"site-packages\\calibre\\ebooks\\oeb\\polish\\container.py\", line 1301, in process_encryption\n\nObfuscationKeyMissing: Failed to find obfuscation key<\/code><\/pre>\n\n\n\n<p>To fix this &#8220;missing obfuscation key&#8221; issue is quite simple, convert from EPUB to EPUB and resend to the device.<\/p>\n\n\n\n<p>Alternatively, you can just keep the book in its original EPUB format.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.mobileread.com\/forums\/showthread.php?t=241480\" data-type=\"link\" data-id=\"https:\/\/www.mobileread.com\/forums\/showthread.php?t=241480\" target=\"_blank\" rel=\"noreferrer noopener\">Link<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calibre: error communicating with device, failed to find obfuscation key is due to encrypted fonts. Calibre&#8217;s KoboTouchExtended plugin was unable to locate the key to decrypt the embedded fonts to convert the EPUB file to KEPUB.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81],"tags":[590,576,593],"class_list":["post-6054","post","type-post","status-publish","format-standard","hentry","category-tablet","tag-calibre","tag-epub","tag-kepub"],"_links":{"self":[{"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/posts\/6054","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/comments?post=6054"}],"version-history":[{"count":2,"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/posts\/6054\/revisions"}],"predecessor-version":[{"id":6056,"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/posts\/6054\/revisions\/6056"}],"wp:attachment":[{"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/media?parent=6054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/categories?post=6054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alfredivy.sg\/blogger\/wp-json\/wp\/v2\/tags?post=6054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}