Error link of '.mexw64' failed

Hi

I am getting the following error while running the mex command

mex generateEllipseCandidates.cpp -IC:\opencv\sources\include -IC:\opencv\sources\include\opencv -IC:\opencv\sources\include\opencv2 -LC:\opencv\build\x64\vc10\lib -IC:\MATLAB\R2013a\settlein\extern\include -LC:\MATLAB\R2013a\settlein\extern\lib\win64\microsoft -lopencv_core249 -lopencv_highgui249 -lopencv_imgproc249 -lC:/MATLAB/R2013a/extern/lib/win64/libmwlapack.dll

Warning: MEX could not find the library "C:/MATLAB/R2013a/extern/lib/win64/libmwlapack.dll" specified with -l option.

MEX looked for a file with one of the names:

C:/MATLAB/R2013a/extern/lib/win64/libmwlapack.dll.lib

libC:/MATLAB/R2013a/extern/lib/win64/libmwlapack.dll.lib

MEX looked for the library in the following directories:

C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\LIB\amd64

C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\ATLMFC\LIB\amd64

C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\lib\x64

C:\MATLAB\R2013a\extern\lib\win64

C:\MATLAB\R2013a\extern\lib\win64\microsoft

C:\opencv\build\x64\vc10\lib

C:\MATLAB\R2013a\settlein\extern\lib\win64\microsoft

Creating library C:\Users\asus\AppData\Local\Temp\mex_CGWo6Q\templib.x and object C:\Users\asus\AppData\Local\Temp\mex_CGWo6Q\templib.exp

generateEllipseCandidates.obj : error LNK2019: unresolved external symbol dggev referenced in function "int __cdecl fitEllipse(struct point2d *,int,double *)" (?fitEllipse@@YAHPEAUpoint2d@@HPEAN@Z)

generateEllipseCandidates.mexw64 : fatal error LNK1120: 1 unresolved externals

C:\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'generateEllipseCandidates.mexw64' failed.

Kindly help me solve this.

Answer 1

[Jan]

What about:

mex generateEllipseCandidates.cpp libmwlapack.lib libmwblas.lib ...

and omit "-lC:/MATLAB/R2013a/extern/lib/win64/libmwlapack.dll"

[Aravind Kota]

I have tried omitting the lib path, but i am unable to create the mex file. I am getting the following error.

Kindly help.

Thanks in advance.

Creating library C:\Users\asus\AppData\Local\Temp\mex_CLBrX9\templib.x and object C:\Users\asus\AppData\Local\Temp\mex_CLBrX9\templib.exp

generateEllipseCandidates.obj : error LNK2019: unresolved external symbol dggev referenced in function "int __cdecl fitEllipse(struct point2d *,int,double *)" (?fitEllipse@@YAHPEAUpoint2d@@HPEAN@Z)

generateEllipseCandidates.mexw64 : fatal error LNK1120: 1 unresolved externals

C:\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'generateEllipseCandidates.mexw64' failed.

Error using mex (line 206)

Unable to complete successfully.

[Jan]

Did you consider my suggestion? My code does not "omit the lib path", but add the library explicitely. Please post, which command produces the show error message.