Trying to get matlab mex file to work

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Stagleton
Stagleton 2011-11-15
回答： CHUANQIANG ZHANG 2019-5-12
I've been trying to run a c file in matlab with mex function. I have been getting this same error that's below. I cannot edit the names of the directory files because I do not have admin access. Everything was created automatically. I downloaded VS2010e as the compiler.
>> mex -v -g mexcallmatlab.c
-> Default options filename found in C:\Users\gsea\AppData\Roaming\MathWorks\MATLAB\R2010b
----------------------------------------------------------------
-> Options file = C:\Users\gsea\AppData\Roaming\MathWorks\MATLAB\R2010b\mexopts.bat
MATLAB = C:\Program Files (x86)\MATLAB\R2010b
-> COMPILER = cl
-> Compiler flags:
COMPFLAGS = /c /Zp8 /GR /W3 /EHs /D_CRT_SECURE_NO_DEPRECATE /D_SCL_SECURE_NO_DEPRECATE /D_SECURE_SCL=0 /DMATLAB_MEX_FILE /nologo /MD
OPTIMFLAGS = /O2 /Oy- /DNDEBUG
DEBUGFLAGS = /Z7
arguments =
Name switch = /Fo
-> Pre-linking commands =
-> LINKER = link
-> Link directives:
LINKFLAGS = /dll /export:mexFunction /LIBPATH:"C:\Program Files (x86)\MATLAB\R2010b\extern\lib\win64\microsoft" libmx.lib libmex.lib libmat.lib /MACHINE:X64 -lkernel32 user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /manifest /incremental:NO /implib:"C:\Users\gsea\AppData\Local\Temp\mex_Xt7aAg\templib.x" /MAP:"mexcallmatlab.mexw64.map"
LINKDEBUGFLAGS = /debug /PDB:"mexcallmatlab.mexw64.pdb"
LINKFLAGSPOST =
Name directive = /out:"mexcallmatlab.mexw64"
File link directive =
Lib. link directive =
Rsp file indicator = @
-> Resource Compiler = rc /fo "mexversion.res"
-> Resource Linker =
----------------------------------------------------------------
--> cl /c /Zp8 /GR /W3 /EHs /D_CRT_SECURE_NO_DEPRECATE /D_SCL_SECURE_NO_DEPRECATE /D_SECURE_SCL=0 /DMATLAB_MEX_FILE /nologo /MD /FoC:\Users\gsea\AppData\Local\Temp\mex_Xt7aAg\mexcallmatlab.obj -I"C:\Program Files (x86)\MATLAB\R2010b"\extern\include /Z7 -DMX_COMPAT_32 mexcallmatlab.c
mexcallmatlab.c
Contents of C:\Users\gsea\AppData\Local\Temp\mex_Xt7aAg\mex_tmp.rsp:
C:\Users\gsea\AppData\Local\Temp\mex_Xt7aAg\mexcallmatlab.obj
--> link /out:"mexcallmatlab.mexw64" /debug /PDB:"mexcallmatlab.mexw64.pdb" /dll /export:mexFunction /LIBPATH:"C:\Program Files (x86)\MATLAB\R2010b\extern\lib\win64\microsoft" libmx.lib libmex.lib libmat.lib /MACHINE:X64 -lkernel32 user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /manifest /incremental:NO /implib:"C:\Users\gsea\AppData\Local\Temp\mex_Xt7aAg\templib.x" /MAP:"mexcallmatlab.mexw64.map" @C:\Users\gsea\AppData\Local\Temp\mex_Xt7aAg\mex_tmp.rsp
LINK : warning LNK4044: unrecognized option '/lkernel32'; ignored
LINK : fatal error LNK1104: cannot open file 'mexcallmatlab.mexw64'
C:\PROGRA~2\MATLAB\R2010B\BIN\MEX.PL: Error: Link of 'mexcallmatlab.mexw64' failed.
??? Error using ==> mex at 208
Unable to complete successfully.
>>
  4 个评论
显示 2更早的评论
Kaustubha Govind
Kaustubha Govind 2011-11-15
Also, do you have write permissions to your directory? Try running the mex command after starting MATLAB "as administrator".
Stagleton
Stagleton 2011-11-15
how do I run the mex command as administrator?

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采纳的回答

Friedrich
Friedrich 2011-11-15
Hi,
seems like you are trying to compile the example file in the directory where it comes with MATLAB. Under Windows 7 or Vista the UAC blocks write access to the C:\Program Files\... folders, which results in such an error. Try to copy that file to a folder where you have write access and compile it in there.
  2 个评论
Kaustubha Govind
Kaustubha Govind 2011-11-15
In addition, I am also uncomfortable with the use of the name "mexcallmatlab" - I would recommend using a different name because this clashes with the name of the MEX-API function mexCallMATLAB.
Stagleton
Stagleton 2011-11-15
This sounds right, I don't have admin access on my work pc. I tried to copy the file to the desktop but still got the same error. In order to install the SDK and Microsoft Studio 2010 C++ I had to use "Windows 7 Elevated Installer".
I tried another file name 'array1.c' also. After running the command "mex array1.c", I get an output file 'array1.mexw64' but the same error as before. Is there a way around this?

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更多回答（3 个）

Stagleton
Stagleton 2011-11-15
sorry for the dumb question. To create a mex function I was not making a proper gateway. My c files were not written correctly.
This helped a bit: http://www.mathworks.se/help/techdoc/matlab_external/f29502.html
Eduardo
Eduardo 2013-5-31
Hi, I am using Visual Studio with matlab and I get the same error as your when I try to compile something with the mex command:
Please how did you solve it??
LINK : fatal error LNK1181: cannot open input file 'kernel32.lib'
C:\PROGRA~1\MATLAB\R2011A\BIN\MEX.PL: Error: Link of 'field_extract.mexw64' failed.
??? Error using ==> mex at 208 Unable to complete successfully.
  2 个评论
Friedrich
Friedrich 2013-6-3
Most likely a bittedness missmatch. Make sure you configured the project to be a 64bit project. Otherwise the 32bit compiler tries to open the 64bit kernel32.lib which results in the error you get.
moataz hassan
moataz hassan 2013-12-4
You need to run windows update VS10sp1-KB983509. the problem will be solve

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CHUANQIANG ZHANG
CHUANQIANG ZHANG 2019-5-12
I had similar problem. I was running MATLAB 2019a under windows 10.
To solve the problem, please try to run with Windows 7 compatible mode, and admin.
See attached picture. Good luck!
捕获.JPG

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