Hi Quan.
I installed tesseract with brew:
brew install tesseract --all-languages
The library is in the system path /usr/local/lib/ and I added it to the
classpath in the eclipse project
Command line mode works fine, but when I try to work with tess4j the
exception I found is :
java.lang.UnsatisfiedLinkError: Error looking up function
'TessBaseAPICreate': dlsym(0x7f942aa0b910, TessBaseAPICreate): symbol not
found
I'm debugging tess4j code and when I launch
net.sourceforge.tess4j.TessAPI1Test.testTessBaseAPIRect the exception is
launched when invokes
this.peer = library.getSymbolAddress(functionName);
-->[com.sun.jna.NativeLibrary.getSymbolAddress("TessBaseAPICreate")]
Full trace :
java.lang.UnsatisfiedLinkError: Error looking up function
'TessBaseAPICreate': dlsym(0x7fb932a1e4e0, TessBaseAPICreate): symbol not
found
at com.sun.jna.Function.<init>(Function.java:208)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:536)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:513)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:499)
at com.sun.jna.Native.register(Native.java:1509)
at com.sun.jna.Native.register(Native.java:1396)
at com.sun.jna.Native.register(Native.java:1156)
at net.sourceforge.tess4j.TessAPI1.<clinit>(TessAPI1.java:37)
at net.sourceforge.tess4j.TessAPI1Test.setUp(TessAPI1Test.java:57)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Also I've wrote this test code :
TessAPI api = (TessAPI) Native.loadLibrary("tesseract, TessAPI.class);
api.TessVersion();
The first line doesn't throw exception ( it makes me think library is found
and loaded), but the second line throws similar exception:
java.lang.UnsatisfiedLinkError: Error looking up function 'TessVersion':
dlsym(0x7fb0b1a16fc0, TessVersion): symbol not found
at com.sun.jna.Function.<init>(Function.java:208)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:536)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:513)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:499)
at com.sun.jna.Library$Handler.invoke(Library.java:199)
...
Thank you for any help you can provide
El sábado, 16 de noviembre de 2013 00:58:03 UTC+1, Quan Nguyen escribió:
>
> Do you get or have libtesseract.dylib in your system path?
>
> On Friday, November 15, 2013 6:29:14 AM UTC-6, fontecha wrote:
>>
>> I have the same problem.
>> Do you find any solution or workarround?
>>
>> Thanks.
>>
>> El miércoles, 10 de julio de 2013 11:52:29 UTC+2, Masiar escribió:
>>>
>>> Hello, I installed Tesseract and all the stuff on my Mac. By running via
>>> terminal the command apparently it works.
>>> I'm trying to run it from Eclipse (following one of the examples on the
>>> website), but I receive the following error:
>>>
>>> Exception in thread "main" java.lang.UnsatisfiedLinkError: Error looking
>>> up function 'TessBaseAPICreate': dlsym(0x7fb714d3db20, TessBaseAPICreate):
>>> symbol not found
>>>
>>> at com.sun.jna.Function.<init>(Function.java:179)
>>>
>>> at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:391)
>>>
>>> at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:371)
>>>
>>> at com.sun.jna.Library$Handler.invoke(Library.java:205)
>>>
>>> at com.sun.proxy.$Proxy12.TessBaseAPICreate(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 net.sourceforge.tess4j.Tesseract.doOCR(Unknown Source)
>>>
>>> at AccountCreator.decrypt(AccountCreator.java:177)
>>>
>>> at AccountCreator.submittingForm(AccountCreator.java:100)
>>>
>>> at AccountCreator.<init>(AccountCreator.java:197)
>>>
>>> at Main.main(Main.java:5)
>>>
>>>
>>> What can I do to solve this issue? Anybody has an idea?
>>>
>>> Thanks a lot!
>>>
>>
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