Run the application with Debug error with static library

[jsulm]

@DQUY05 said in Run the application with Debug error with static library:

-L$$PWD/mingw-w64-x86_64-static-tesseract-master/lib/ -ltesseract

If you want a static build then also all dependencies have to be static. Currently you're linking a shared version of the tesseract lib. Build it as static.

[DQUY05]

@jsulm said in Run the application with Debug error with static library:

@DQUY05 said in Run the application with Debug error with static library:

-L$$PWD/mingw-w64-x86_64-static-tesseract-master/lib/ -ltesseract

If you want a static build then also all dependencies have to be static. Currently you're linking a shared version of the tesseract lib. Build it as static.

Thank Sir !

When I switch to this option,

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/mingw-w64-x86_64-static-tesseract-master/lib/ -ltesseract
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/mingw-w64-x86_64-static-tesseract-master/lib/ -ltesseractd

INCLUDEPATH += $$PWD/mingw-w64-x86_64-static-tesseract-master
DEPENDPATH += $$PWD/mingw-w64-x86_64-static-tesseract-master


win32:CONFIG(release, debug|release): LIBS += -L$$PWD/mingw-w64-x86_64-static-tesseract-master/lib/ -llept
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/mingw-w64-x86_64-static-tesseract-master/lib/ -lleptd

INCLUDEPATH += $$PWD/mingw-w64-x86_64-static-tesseract-master
DEPENDPATH += $$PWD/mingw-w64-x86_64-static-tesseract-master

Then I got an error, I tried to find out but there is very little documentation about tesseract static library, can you help me see where the error is? Thanks!
I used the static library at this path https://github.com/bradosia/mingw-w64-x86_64-static-tesseract

[jsulm]

@DQUY05 said in Run the application with Debug error with static library:

I used the static library at this path https://github.com/bradosia/mingw-w64-x86_64-static-tesseract

OK, forget my previous post.
The problem is that this static build does not contain debug versions of the libs (like libtesseractd.a).
Try to change:

-ltesseractd

to

-ltesseract

And same for the other libs.

[DQUY05]

@jsulm said in Run the application with Debug error with static library:

Được rồi, quên bài đăng trước của tôi đi.
Vấn đề là bản dựng tĩnh này không chứa phiên bản gỡ lỗi của libs (như libtesseractd.a).
Hãy thử thay đổi:

Dear Sir !
I tried as you said, but it seems the problem is that the other path is missing the file?

I am a newbie, not proficient in installing libraries, I hope you can guide me, this project is very interesting to me, Thanks!

[jsulm]

@DQUY05 After changing the pro file do a complete rebuild:

• Delete build folder
• Run qmake
• build

If you still get "undefined reference" errors it means that a library was not found. Look for the very first error message or warning. You can also post the build log so we can check what library was not found.

The problem could be that Tesseract is written in C++ and you cannot mix debug and release binaries. In this case you will have to build Tesseract statically for debug and release by yourself.

[DQUY05]

@jsulm said in Run the application with Debug error with static library:

Delete build folder
Run qmake
build

I followed this sequence, but the error still appears,
My account can't attach Log file, I'm still used to using static library and environment variable type library like OpenCv, besides I don't know other approach

INCLUDEPATH += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/include
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_core452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_highgui452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_imgproc452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_videoio452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_imgcodecs452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_features2d452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_video452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_objdetect452.dll

[jsulm]

@DQUY05 said in Run the application with Debug error with static library:

LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_core452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_highgui452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_imgproc452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_videoio452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_imgcodecs452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_features2d452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_video452.dll
LIBS += C:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin/libopencv_objdetect452.dll

This is all wrong. If you want static build why do you link DLLs?
And on Windows you do not link DLLs, you link *.lib files (like libopencv_objdetect452.lib). It should be like:

LIBS += -LC:/OpenCV-MinGW-Build-OpenCV-4.5.2-x64/x64/mingw/bin -lopencv_core452

[DQUY05]

@jsulm

If I only run Opencv without Tesseract, the application works normally, but when I use the additional tesseract static library, it causes the error as mentioned. Is it because I use 2 different library methods in the same project?

[DQUY05]

Hi,
Now I run without any errors, until calling this function

tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI();

Then the error appeared.

error: undefined reference to `tesseract::TessBaseAPI::TessBaseAPI()'

Is there something wrong with the static library add operation, I'm really confused,

[jsulm]

@DQUY05 said in Run the application with Debug error with static library:

Is there something wrong with the static library add operation

You're not linking the library which contains tesseract::TessBaseAPI.
Check the build log for warnings about incompatible library.