Problem with external matlab to VC++ 2008

Question

Yang 2011-6-6

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/8854-problem-with-external-matlab-to-vc-2008

Dear all,

I meet a problem that when I follow the tutorial about how to call matlab function in C. And I use VC++ 2008, I have already set

Additional Include Directories F:\MATLAB\R2009b\extern\include

Additional Library Directories F:\MATLAB\R2009b\extern\lib\win64\microsoft

Additional Dependencies libeng.lib libmx.lib libut.lib

But it still shows the linking error:

1>------ Build started: Project: matlab_test, Configuration: Debug Win32 ------

1>Compiling...

1>main.cpp

1>Linking...

1>main.obj : error LNK2019: unresolved external symbol _engClose referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _mxGetClassName referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _engGetVariable referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _engOutputBuffer referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _mxDestroyArray referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _engEvalString referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _engPutVariable referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _mxGetPr referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _mxCreateDoubleMatrix_730 referenced in function _main

1>main.obj : error LNK2019: unresolved external symbol _engOpen referenced in function _main

1>C:\Users\Administrator\Documents\Visual Studio 2008\Projects\matlab_test\Debug\matlab_test.exe : fatal error LNK1120: 10 unresolved externals

1>Build log was saved at "file://c:\Users\Administrator\Documents\Visual Studio 2008\Projects\matlab_test\matlab_test\Debug\BuildLog.htm"

1>matlab_test - 11 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

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Answer 1

Kaustubha Govind 2011-6-6

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/8854-problem-with-external-matlab-to-vc-2008#answer_12232

It is possible that your Visual C++ project is configured to compile a 32-bit application (so it cannot recognize the 64-bit binaries libeng.lib, libmx.lib, etc.). See How to: Configure Visual C++ Projects to Target 64-Bit Platforms.

If this doesn't resolve the issue, you may be missing additional linker options. First try compiling the application using the MEX command and use the mex -v option to see the exact compiler/linker commands required in your Visual C++ project.