What is the problem?
If I submit an OCR request with lang = equ (which is the "Math / equation detection module"), I get a 500 error:
Message: Uncaught PHP Exception thiagoalessio\TesseractOCR\UnsuccessfulCommandException: "Error! The command did not produce any output. Generated command: "tesseract" - "/tmp/ocrCetOOv" --psm 3 --oem 3 -l equ Returned message: Error opening data file /usr/share/tesseract-ocr/4.00/tessdata/equ.traineddata Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory. Failed loading language 'equ' Tesseract couldn't load any languages! Could not initialize tesseract." at /var/www/tool/vendor/thiagoalessio/tesseract_ocr/src/FriendlyErrors.php line 66 Time: 2021-06-11T15:19:04.537858+00:00 Channel: request Context: exception: { "class": "thiagoalessio\\TesseractOCR\\UnsuccessfulCommandException", "message": "Error! The command did not produce any output.\n\nGenerated command:\n\"tesseract\" - \"/tmp/ocrCetOOv\" --psm 3 --oem 3 -l equ\n\nReturned message:\nError opening data file /usr/share/tesseract-ocr/4.00/tessdata/equ.traineddata\nPlease make sure the TESSDATA_PREFIX environment variable is set to your \"tessdata\" directory.\nFailed loading language 'equ'\nTesseract couldn't load any languages!\nCould not initialize tesseract.", "code": 0, "file": "/var/www/tool/vendor/thiagoalessio/tesseract_ocr/src/FriendlyErrors.php:66", "trace": [ "/var/www/tool/vendor/thiagoalessio/tesseract_ocr/src/TesseractOCR.php:39", "/var/www/tool/src/Engine/TesseractEngine.php:87", "/var/www/tool/src/Controller/OcrController.php:199", "/var/www/tool/vendor/symfony/cache/LockRegistry.php:100", "/var/www/tool/vendor/symfony/cache/Traits/ContractsTrait.php:88", "/var/www/tool/vendor/symfony/cache-contracts/CacheTrait.php:70", "/var/www/tool/vendor/symfony/cache/Traits/ContractsTrait.php:95", "/var/www/tool/vendor/symfony/cache-contracts/CacheTrait.php:33", "/var/www/tool/src/Controller/OcrController.php:200", "/var/www/tool/src/Controller/OcrController.php:146", "/var/www/tool/vendor/symfony/http-kernel/HttpKernel.php:157", "/var/www/tool/vendor/symfony/http-kernel/HttpKernel.php:79", "/var/www/tool/vendor/symfony/http-kernel/Kernel.php:195", "/var/www/tool/public/index.php:21" ] } Extra: host: ocr-test.wmcloud.org uri: http://ocr-test.wmcloud.org/api.php?engine=tesseract&image=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F6%2F64%2FGevel_-_Venray_-_20241580_-_RCE.jpg&lang=equ
Steps to reproduce problem
Expected behavior: OCR text is returned
Observed behavior: 500 error
Environment
Wikimedia OCR: https://ocr-test.wmcloud.org Version 0.5.0-7-gc1906ef