Sys-kernel/linux-headers: 4.19::gentoo (virtual/os-headers) Timestamp of repository gentoo: Sun, 07:30:01 +0000 ValueError: Failed to export image as JPEG with error: Image is empty ValueError: Failed to export image as JPEG with error: Unsupported image format Raise ValueError('Failed to export image as ' + fmt + ' with error: ' + w.errorString()) Return image_to_data(img, compression_quality, fmt) if changed else dataįile "/usr/lib64/calibre/calibre/utils/img.py", line 162, in image_to_data In addition, when I try to update the book covers with Calibre's 'download cover' utility, I get the following error:įile "/usr/lib64/calibre/calibre/ebooks/metadata/sources/covers.py", line 76, in process_resultįile "/usr/lib64/calibre/calibre/utils/img.py", line 220, in save_cover_data_to Most of the books already have covers downloaded and stored in their folder due to previous Calibre installs in Arch and Debian. Posted: Sun 5:53 pm Post subject: Calibre cannot update book covers - python error.Ĭalibre does not display any book covers in my library, regardless of book format. Calibre cannot update book covers - python error. Gentoo Forums :: View topic - Calibre cannot update book covers - python error.
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