java.lang.UnsatisfiedLinkError in tess4j

[Ankita Verma]

Hi, 

I am getting an error

Exception in thread "main" java.lang.UnsatisfiedLinkError: The specified module could not be found.

at com.sun.jna.Native.open(Native Method)

at com.sun.jna.Native.open(Native.java:1759)

at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:260)

at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:398)

at com.sun.jna.Library$Handler.<init>(Library.java:147)

at com.sun.jna.Native.loadLibrary(Native.java:412)

at com.sun.jna.Native.loadLibrary(Native.java:391)

at net.sourceforge.tess4j.util.LoadLibs.getTessAPIInstance(Unknown Source)

at net.sourceforge.tess4j.TessAPI.<clinit>(Unknown Source)

at net.sourceforge.tess4j.Tesseract.init(Unknown Source)

at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)

at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)

at net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)

at com.app.ocr.TesseractExample.main(TesseractExample.java:17)

I have all the dlls in the classpath and the tessdata folder is in place.

Please help me regarding this.

[Quan Nguyen]

Did you install Visual C++ Redistributable for VS2013? This seems to be the most common problem. Check the forum for answers.

[Dattatraya Tembare]

I'm facing the same problem on Windows 10 with JDK 10 (same code is working in Windows 7 with JDK 8)

Error Logs: 

java.lang.UnsatisfiedLinkError: The specified module could not be found.

        at com.sun.jna.Native.open(Native Method) ~[jna-4.5.2.jar!/:4.5.2 (b0)]
        at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:288) ~[jna-4.5.2.jar!/:4.5.2 (b0)]
        at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:427) ~[jna-4.5.2.jar!/:4.5.2 (b0)]
        at com.sun.jna.Library$Handler.<init>(Library.java:179) ~[jna-4.5.2.jar!/:4.5.2 (b0)]
        at com.sun.jna.Native.loadLibrary(Native.java:569) ~[jna-4.5.2.jar!/:4.5.2 (b0)]
        at com.sun.jna.Native.loadLibrary(Native.java:544) ~[jna-4.5.2.jar!/:4.5.2 (b0)]
        at net.sourceforge.tess4j.util.LoadLibs.getTessAPIInstance(LoadLibs.java:81) ~[tess4j-4.0.1.jar!/:4.0.1]
        at net.sourceforge.tess4j.TessAPI.<clinit>(TessAPI.java:42) ~[tess4j-4.0.1.jar!/:4.0.1]
        at net.sourceforge.tess4j.Tesseract.init(Tesseract.java:364) ~[tess4j-4.0.1.jar!/:4.0.1]
        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:277) ~[tess4j-4.0.1.jar!/:4.0.1]
        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:260) ~[tess4j-4.0.1.jar!/:4.0.1]
        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:241) ~[tess4j-4.0.1.jar!/:4.0.1]
        at com.ea.ocr.tesseract.ReadImageText.ocrText(ReadImageText.java:143) ~[classes!/:18.07.02]
        at com.ea.ocr.data.GenerateData.getOcrText(GenerateData.java:663) ~[classes!/:18.07.02]
        at com.ea.ocr.data.GenerateData.voterCounts(GenerateData.java:299) ~[classes!/:18.07.02]
        at com.ea.ocr.data.GenerateData.generateJsonFile(GenerateData.java:123) ~[classes!/:18.07.02]
        at com.ea.ocr.controller.EaOcrController.generateJson(EaOcrController.java:35) ~[classes!/:18.07.02]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]

[Dattatraya Tembare]

Forgot to mention, I have installed Visual C++ Redistributable for VS2013
Still how to check it, whether I have installed correct version?

[Quan Nguyen]

That was old posts for older versions. You need VC++ 2015 at this time.

Btw, we haven't tested it with Java 10 yet. Will do that soon.

Thanks.

[Quan Nguyen]

I've found the unit tests completed successfully with JDK 10 as well. So make sure you install the appropriate VC++ runtime.

[Dattatraya Tembare]

Thanks Quan,

Will install latest VC++, test and let you know.

Datta

--
You received this message because you are subscribed to the Google Groups "tesseract-ocr" group.
To unsubscribe from this group and stop receiving emails from it, send an email to tesseract-oc...@googlegroups.com.
To post to this group, send email to tesser...@googlegroups.com.
Visit this group at https://groups.google.com/group/tesseract-ocr.
To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/f36adcbe-cf06-422a-94da-fb030bbdea54%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

Best Regards,
Dattatraya Tembare

+1 914 721 6311

[Dattatraya Tembare]

Hello Quan,

VC++ 2015 upgrade worked.

Thanks! again.