cannot open ebooks through calibre or contet menus

[rebeltaz]

When I right click on an ebook - usually epub or awz3 format - and I select "Open With E-book Viewer" nothing happens. Same if I double click an ebook or select any of the View options from within calibre.

I am currently using calibre v5.37.0 under ubuntu 22.04 LTS. I know that before "upgrading" ubuntu (and therefore, calibre as well) this always worked just fine. I did the "upgrade" months ago, but I only just now tried getting an ebook to open, so I don't know if the newer versions caused it or if something else may have.

I did install Amazon Kindle Reader through wine, but I have double checked that epub and awz3 files are still associated with calibre. Besides that, I wouldn't think that the association would affect opening an ebook through calibre itself.

Any help would be great. If you need any more info, I will be happy to provide it. Thanks.

[DNSB]

Does the ebook viewer even open? Have you tried running calibre in debug mode and then opening the ebook viewer? Personally, I would try installing the "official" version from the calibre home page. Too many people have reported issues with the repository versions.

[rebeltaz]

Originally Posted by DNSB

Does the ebook viewer even open? Have you tried running calibre in debug mode and then opening the ebook viewer? Personally, I would try installing the "official" version from the calibre home page. Too many people have reported issues with the repository versions.

No, the ebook viewer doesn't open at all.

I just tried running it in debug and it doesn't open the reader that way, either. I saw something in the log file about "Could not find QtWebEngineProcess" after "Starting QuickView". I guess that's why.

I did a quick search here and I found this - https://www.mobileread.com/forums/sh...bengineprocess

I tried that and sure enough... it worked! PLUS now epubmerge and epubsplit are showing up in my menu where they were not before.

I really appreciate your help. If not for the debug tip, I'd still be spinning my wheels

[bluubyrd]

Same problem. 1999 Ford proprietary CD in .pdf format of a Service Manual won't open. The following messages appear:
calibre, version 6.13.0
ERROR: Loading book failed: Failed to open the book at D:\2000 Ford Explorer & Mercury Mountaineer Vol.1 SM.pdf. Click "Show details" for more info.

Failed to convert book: D:\2000 Ford Explorer & Mercury Mountaineer Vol.1 SM.pdf with error:
Traceback (most recent call last):
File "calibre\customize\ui.py", line 436, in get_file_type_metadata
File "calibre\customize\builtins.py", line 323, in get_metadata
File "calibre\ebooks\metadata\pdf.py", line 111, in get_metadata
File "shutil.py", line 195, in copyfileobj
PermissionError: [Errno 13] Permission denied
InputFormatPlugin: PDF Input running
on D:\2000 Ford Explorer & Mercury Mountaineer Vol.1 SM.pdf
Failed to run pipe worker with command: from calibre.srv.render_book import viewer_main; viewer_main()
Traceback (most recent call last):
File "runpy.py", line 196, in _run_module_as_main
File "runpy.py", line 86, in _run_code
File "site.py", line 83, in <module>
File "site.py", line 78, in main
File "site.py", line 50, in run_entry_point
File "calibre\utils\ipc\worker.py", line 196, in main
File "<string>", line 1, in <module>
File "calibre\srv\render_book.py", line 821, in viewer_main
File "calibre\srv\render_book.py", line 812, in render_for_viewer
File "calibre\srv\render_book.py", line 789, in render
File "calibre\ebooks\oeb\iterator\book.py", line 62, in extract_book
File "calibre\customize\conversion.py", line 242, in __call__
File "calibre\ebooks\conversion\plugins\pdf_input.p y", line 51, in convert
File "calibre\ebooks\pdf\pdftohtml.py", line 50, in pdftohtml
File "shutil.py", line 195, in copyfileobj
PermissionError: [Errno 13] Permission denied

[theducks]

Read the last line of that log.
Copy protected?

[Quoth]

Use a PDF printer if any viewer will print it.