Running OCR gives no results and NS_ERROR_FILE_NOT_FOUND

[TrakJohnson]

Hi, just installed the plugin, when trying to OCR my first file I get the following error in the developer console:

NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.isDirectory]

I first thought that I had misconfigured tesseract/pdftoppm, but everything seems to look fine.. are there any ways to further investigate this ? I read through #87 but it doesn't seem related. Thanks !

Here's my configuration:

• Zotero 7.0.11
• Fedora Linux 41 / Linux 6.11.10-300.fc41.x86_64
• Libraries:

❯ /usr/bin/pdftoppm -v                                                           
pdftoppm version 24.08.0
Copyright 2005-2024 The Poppler Developers - http://poppler.freedesktop.org
Copyright 1996-2011, 2022 Glyph & Cog, LLC
❯ /usr/bin/tesseract -v                                                              ~
tesseract 5.4.1
 leptonica-1.84.1
  libgif 5.2.2 : libjpeg 6b (libjpeg-turbo 3.0.2) : libpng 1.6.40 : libtiff 4.6.0 : zlib 1.3.1.zlib-ng : libwebp 1.4.0
 Found AVX512BW
 Found AVX512F
 Found AVX512VNNI
 Found AVX2
 Found AVX
 Found FMA
 Found SSE4.1
 Found libcurl/8.9.1 OpenSSL/3.2.2 zlib/1.3.1.zlib-ng libidn2/2.3.7 nghttp2/1.62.1

• Zotero-OCR settings:

[aborel]

First we can check whether the problem happens at the pdftoppm or at the tesseract stage. Are the PNG images saved to the Zenodo item folder?

[zzyzx-dc]

I am having the same issue and came here to see if anyone else was. Zotero 7.0.11 on Fedora Workstation 41.

Could not get children of file(/opt) because it does not exist
Error code: NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.isDirectory] zotero-ocr.js:87

Additionally, like the original post, I had to manually set the filepaths to /usr/bin/tesseract and /usr/bin/pdftoppm or it returned OperationError: Could not parse path (tesseract): NS_ERROR_FILE_UNRECOGNIZED_PATH but the documentation helped me realize I needed to locate the file paths myself. Thanks!

[aborel]

Since the OP didn't answer, maybe you can check whether pdftoppm did its job?

[zzyzx-dc]

Sure thing - I am not sure how to check so you might have to walk me through it. When I go to the item folder (Zotero item - right click - Show file) there is only the PDF file.