Failed to initialise tesseract engine Error-1 on WebService

[CoXmaister]

Hello,

I am trying to use this wrapper to create Web Service.
My problem is in initialization the engine, error is always the same I tried many different solutions.
I think that problem is in directory of tessdata folder. Adding solution for Tesseract (wrapper) to see what's the problem gave me the answer that function TessBaseAPIInit1 returns -1. I even checked in tesseract C++ repo for this function details and I came to conclusion that it returns -1 when tessdata folder is not found.

My initialization looks like this:
var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default) - same as in Sample

@"./tessdata" - in my program full path is C:\Program Files (x86)\IIS Express\tessdata

I copied tessdata from Sample project so there's no problem with version - I think.

So problem must be in localization of folder tessdata, I copied tessdata to folder mentioned above, and to folders in my solution (bin, debug) I insert it everywhere to be sure.

PS. Log file looks good there's no exceptions or failures, but it looks like it's not complete. Last line looks like this:
Tesseract Information: 0 : Successfully loaded native function "Te

If someone had similar problem pls help ;)

Thanks for response.

[charlesw]

Your analysis is probably correct and it's generally a bad idea to use the
working directory in http://ASP.NETASP. http://ASP.NETNET instead try
and use service.Mappath (
https://msdn.microsoft.com/en-us/library/ms524632(v=vs.90).aspx).

Check out the web demo in the bundled samples for an example.

Hello,

I am trying to use this wrapper to create Web Service.
My problem is in initialization the engine, error is always the same I
tried many different solutions.
I think that problem is in directory of tessdata folder. Adding solution
for Tesseract (wrapper) to see what's the problem gave me the answer that
function TessBaseAPIInit1 returns -1. I even checked in tesseract C++ repo
for this function details and I came to conclusion that it returns -1 when
tessdata folder is not found.

My initialization looks like this:
var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default)

• same as in Sample

@"./tessdata" - in my program full path is C:\Program Files (x86)\IIS
Express\tessdata

I copied tessdata from Sample project so there's no problem with version -
I think.

So problem must be in localization of folder tessdata, I copied tessdata to
folder mentioned above, and to folders in my solution (bin, debug) I insert
it everywhere to be sure.

PS. Log file looks good there's no exceptions or failures, but it looks
like it's not complete. Last line looks like this:
Tesseract Information: 0 : Successfully loaded native function "Te

If someone had similar problem pls help ;)

Thanks for response.

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#223.

[johntaves]

CoXmaister did you figure out the solution?

I have the same problem. I copied the tessdata folder into my web application folder and use server.mappath (but this really only makes the code portable to production so there is no bogus hard coded folder location).

I have a windows form application that successfully uses tesseract with that same tessdata folder.

I think both are running x64. My web application is running an application pool with my user account.

[charlesw]

If your using the latest release (3.02) double check that you have VS 2015
runtime installed on the machine running your software as this is required
as detailed in the read me.

On Wed, Feb 24, 2016 at 7:25 PM, johntaves notifications@github.com wrote:

CoXmaister did you figure out the solution?

I have the same problem. I copied the tessdata folder into my web
application folder and use server.mappath (but this really only makes the
code portable to production so there is no bogus hard coded folder
location).

I have a windows form application that successfully uses tesseract with
that same tessdata folder.

I think both are running x64. My web application is running an application
pool with my user account.

—
Reply to this email directly or view it on GitHub
#223 (comment).

[johntaves]

I have a windows form application that successfully uses tesseract with that same tessdata folder that runs on the same computer with the same login.

[charlesw]

Okay so that's not the problem, always good to check as it's caught up a
few people previously.

If possible try running your web app using IIS Express which gives access
to any output that Tesseract might be writing to the console which is often
invaluable. Also enable the trace output does provide some additional
diagnostics like the platform it thinks your running etc.

On Wed, Feb 24, 2016 at 7:31 PM, johntaves notifications@github.com wrote:

I have a windows form application that successfully uses tesseract with
that same tessdata folder that runs on the same computer with the same
login.

—
Reply to this email directly or view it on GitHub
#223 (comment).

[johntaves]

The one that was working was 3.01 and I failed to notice that you switched from VS 2012 to VS 2015 between these versions.

It works now that I have VS 2015.