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DNSB · 12-04-2025, 04:46 PM

After cleaning up all the errors around id values in the toc.ncx, epubcheck returned the following:

Code:

main.xhtml	10	338	Col: 61: ERROR(RSC-007): Referenced resource "cover.jpeg" could not be found in the EPUB.

I then looked at the contents of Images where the file was named Cover.jpeg. As mentioned multiple times, case sensitivity matters. On a Linux install, Preview did not show the cover image since the file system is case sensitive. A quick and dirty test on two ereaders (Kobo and Kindle) showed neither would display the cover image unless the case matched (both use Linux as the underlying OS).

12-04-2025, 04:46 PM	#8
DNSB Bibliophagist Posts: 48,799 Karma: 174510638 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	After cleaning up all the errors around id values in the toc.ncx, epubcheck returned the following: Code: main.xhtml 10 338 Col: 61: ERROR(RSC-007): Referenced resource "cover.jpeg" could not be found in the EPUB. I then looked at the contents of Images where the file was named Cover.jpeg. As mentioned multiple times, case sensitivity matters. On a Linux install, Preview did not show the cover image since the file system is case sensitive. A quick and dirty test on two ereaders (Kobo and Kindle) showed neither would display the cover image unless the case matched (both use Linux as the underlying OS).