Error using mex (line 206) Unable to complete successfully.

Question

ahmad rofiq 2015-1-27

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/172057-error-using-mex-line-206-unable-to-complete-successfully

评论： Walter Roberson 2016-6-8

采纳的回答： Geoff Hayes

在 MATLAB Online 中打开

Hello,

1. I installed matlab2013a (32 bit) in windows7 (64bit).

I tried to install Fast Model Predictive Control Using Online Optimization from http://stanford.edu/~boyd/fast_mpc/ which contain C language

I run below command in matlab and got error "Error using mex (line 206) Unable to complete successfully"

Please help

Thank you

>> mex -setup
Welcome to mex -setup.  This utility will help you set up  
a default compiler.  For a list of supported compilers, see  
http://www.mathworks.com/support/compilers/R2013a/win32.html 
Please choose your compiler for building MEX-files: 
Would you like mex to locate installed compilers [y]/n? y
Select a compiler: 
[1] Lcc-win32 C 2.4.1 in C:\PROGRA~2\MATLAB\R2013a\sys\lcc 
[0] None 
Compiler: 1
Please verify your choices: 
Compiler: Lcc-win32 C 2.4.1 
Location: C:\PROGRA~2\MATLAB\R2013a\sys\lcc 
Are these correct [y]/n? y
Trying to update options file: C:\Users\MadOpick\AppData\Roaming\MathWorks\MATLAB\R2013a\mexopts.bat 
From template:              C:\PROGRA~2\MATLAB\R2013a\bin\win32\mexopts\lccopts.bat 
Done . . . 
************************************************************************** 
  Warning: The MATLAB C and Fortran API has changed to support MATLAB 
           variables with more than 2^32-1 elements.  In the near future 
           you will be required to update your code to utilize the new 
           API. You can find more information about this at: 
           http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html  
           Building with the -largeArrayDims option enables the new API. 
************************************************************************** 
>> mex fmpc_sim.c
Writing library for fmpc_sim.mexw32 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_dgemm_' 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_dposv_' 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_dgemv_' 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_daxpy_' 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_dtrtrs_' 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_dtrsv_' 
c:\users\madopick\appdata\local\temp\mex_tgby8u\fmpc_sim.obj .text: undefined reference to '_dnrm2_' 
    C:\PROGRA~2\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'fmpc_sim.mexw32' failed. 
Error using mex (line 206)
Unable to complete successfully.

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Wouter Jongeneel 2015-5-31

Hi Ahmad, I am running into problems with this code as well, are you able to run it finally?

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Answer 1

Geoff Hayes 2015-1-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/172057-error-using-mex-line-206-unable-to-complete-successfully#answer_166036

在 MATLAB Online 中打开

Ahmad - what is the mex call that you are using to build your function? Is it simply

mex fmpc_sim.c

If so, then you must be missing a library (or another C file) that references dgemm, dposv, etc.

The post http://www.mathworks.com/matlabcentral/answers/156072-mex-link-failure-undefined-symbols-for-architecture seems very similar (but is applicable to OS X) and it may be that you have just not included the BLAS and/or LAPACK libraries when compiling the function. See calling lab pack and blas and pay particular attention to the section that deals with Building on Windows Platforms.

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ahmad rofiq 2015-1-28

编辑：Walter Roberson 2015-6-1

在 MATLAB Online 中打开

Thanks

I tried both of them (mex fmpc_sim.c and mex fmpc_sim.c -lblas -llapack) but all of them give me same error "Error using mex (line 206)" (like I had posted)

Thank u.. for the help... I'll try to understand your link first

but below is result for your sugestion, sorry I'm newbie for compiling C in matlab and using mex command

>> mex -v fmpc_sim.c
*************************************************************************** 
  Warning: Neither -compatibleArrayDims nor -largeArrayDims is selected.  
           Using -compatibleArrayDims. In the future, MATLAB will require 
         the use of -largeArrayDims and remove the -compatibleArrayDims  
         option. For more information, see: 
           http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html  
**************************************************************************** 
-> Default options filename found in C:\Users\MadOpick\AppData\Roaming\MathWorks\MATLAB\R2013a 
---------------------------------------------------------------- 
->    Options file           = C:\Users\MadOpick\AppData\Roaming\MathWorks\MATLAB\R2013a\mexopts.bat 
      MATLAB                 = C:\Program Files (x86)\MATLAB\R2013a 
->    COMPILER               = lcc 
->    Compiler flags: 
         COMPFLAGS           = -c -I"C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\include" -DMATLAB_MEX_FILE -noregistrylookup 
         OPTIMFLAGS          = -DNDEBUG 
         DEBUGFLAGS          = -g4 
         arguments           =  
         Name switch         = -Fo 
->    Pre-linking commands   =  
->    LINKER                 = lcclnk 
->    Link directives: 
         LINKFLAGS           =  -tmpdir "." -dll "C:\Program Files (x86)\MATLAB\R2013a\extern\lib\win32\lcc\mexFunction.def" -L"C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\lib" -libpath "C:\Program Files (x86)\MATLAB\R2013a\extern\lib\win32\lcc" "C:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\templib2.obj" 
         LINKDEBUGFLAGS      =  
         LINKFLAGSPOST       = libmx.lib libmex.lib libmat.lib 
         Name directive      = -o "fmpc_sim.mexw32" 
         File link directive =  
         Lib. link directive =  
         Rsp file indicator  = @ 
->    Resource Compiler      = lrc -I"C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\include" -noregistrylookup -fo"mexversion.res" 
->    Resource Linker        =  
---------------------------------------------------------------- 
--> lcc  -c -I"C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\include" -DMATLAB_MEX_FILE -noregistrylookup -FoC:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\fmpc_sim.obj -I"C:\Program Files (x86)\MATLAB\R2013a\extern\include" -I"C:\Program Files (x86)\MATLAB\R2013a\simulink\include" -DNDEBUG -DMX_COMPAT_32 fmpc_sim.c 
--> lcc -c -I"C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\include" -DMATLAB_MEX_FILE -noregistrylookup "C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\mex\lccstub.c" -Fo"C:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\templib2.obj" 
      Contents of C:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\mex_tmp.rsp: 
    C:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\fmpc_sim.obj 
--> lcclnk -o "fmpc_sim.mexw32"  -tmpdir "." -dll "C:\Program Files (x86)\MATLAB\R2013a\extern\lib\win32\lcc\mexFunction.def" -L"C:\Program Files (x86)\MATLAB\R2013a\sys\lcc\lib" -libpath "C:\Program Files (x86)\MATLAB\R2013a\extern\lib\win32\lcc" "C:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\templib2.obj" -s @C:\Users\MadOpick\AppData\Local\Temp\mex_ylXXbW\mex_tmp.rsp  libmx.lib libmex.lib libmat.lib 
Writing library for fmpc_sim.mexw32 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dgemm_' 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dposv_' 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dgemv_' 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_daxpy_' 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dtrtrs_' 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dtrsv_' 
c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dnrm2_' 
    C:\PROGRA~2\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'fmpc_sim.mexw32' failed.

Geoff Hayes 2015-1-28

The -lblas and -llapack are only valid for UNIX or Mac OS environments, so you will have to use the Windows equivalents.

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Answer 2

Ehsan Sadraei 2016-6-8

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/172057-error-using-mex-line-206-unable-to-complete-successfully#answer_224868

Hello guys

I'm receiving exactly the same error as above, I'm using Matlab 2015b. Any one found the solution for it? c:\users\madopick\appdata\local\temp\mex_ylxxbw\fmpc_sim.obj .text: undefined reference to '_dgemm_' ...

I tried the instruction in "calling lab pack and blas" as it was mentioned above but nothing changed.

Thanks