Get dotnet error during execution

[user041071]

Hi!

I am seeking your help today as I see the following error when executing :

dotnet PgsToSrt.dll --input /video/input/Sieben.mkv --track 3 --output /video/input/test.srt
PgsToSrt 1.1.0.0

2020/06/15 10:09:20.485|INFO|Detected tesseract language data for language 'deu'.
2020/06/15 10:09:21.191|INFO|Starting OCR for 1729 items...
2020/06/15 10:09:21.244|ERROR|Error: Exception has been thrown by the target of an invocation. at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
at Tncl.NativeLoader.NativeInstance.CreateInstance[T](NativeLoader loader)
at Tesseract.Interop.TessApi.Initialize(NativeLoader loader) in /root/PgsToSrt/Tesseract/Interop/BaseApi.cs:line 355
at Tesseract.TesseractEngine..ctor(String datapath, String language, EngineMode engineMode, IEnumerable1 configFiles, IDictionary2 initialOptions, Boolean setOnlyNonDebugVariables) in /root/PgsToSrt/Tesseract/TesseractEngine.cs:line 66
at PgsOcr.DoOcr() Exception has been thrown by the target of an invocation.

My system details are:

[root@nvidia out]# tesseract --version
tesseract 3.04.00
leptonica-1.72
libgif 4.1.6(?) : libjpeg 6b (libjpeg-turbo 1.2.90) : libpng 1.5.13 : libtiff 4.0.3 : zlib 1.2.7 : libwebp 0.3.0

[root@nvidia out]# uname -a
Linux nvidia.home 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

[root@nvidia out]# dotnet --version
2.1.807

Do you have any idea about the root cause?
Am I missing something?

BR

[Tentacule]

I think you have installed the tesseract application instead of the library.
libtesseract3 needs to be installed (sudo apt install libtesseract3)

[user041071]

Hi !

Sorry for the late response.
I figured it out. Was due to CentOS not having a libtesseract3 package.
I switched to Ubuntu and followed your advise.
It works now.

Many thanks