fatal error LNK1104: cannot open file 'libmx.lib libmat.lib libeng.lib'

Question

chen 2012-6-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41343-fatal-error-lnk1104-cannot-open-file-libmx-lib-libmat-lib-libeng-lib

评论： Fatma Yörük 2021-8-20

Hi, I want to make a dll compiled in Matlab, and then use this dll in VS2010. The function is very simple:

function [y] = sinwave(x)
y = sin(x); 
end;

and MCC works well, produced .dll, .h, .lib files.

But when I compiled a simple program in VS2010,

#include <stdio.h>
#include <math.h>
//#include "vld.h"
#include <stdlib.h>
#include <string.h>
#include "sinwave.h"
#include "mclmcr.h"
#include "mclmcrrt.h"
#include "mclcppclass.h"
void main(void)
{
if (!mclInitializeApplication(NULL,0))
{
  std::cerr << "could not initialize the triangle library properly" << std::endl;
  return;
}
if (!sinwaveInitialize())
{
  std::cerr << "could not initialize the tb library properly" << std::endl;
  return;
}
    sinwaveTerminate();
    mclTerminateApplication();
}

//an message: LINK : fatal error LNK1104: cannot open file 'libmx.lib libmat.lib libeng.lib' showed.

I added the matlab path extern/lib/win32, win64 to system environment path of my PC, and restart the vs2010.

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Answer 1

Kaustubha Govind 2012-6-18

2
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41343-fatal-error-lnk1104-cannot-open-file-libmx-lib-libmat-lib-libeng-lib#answer_51043

Did you compile using 32-bit MATLAB or 64-bit MATLAB? You need to add extern/lib/win32 if using 32-bit and extern/lib/win64 if using 64-bit (not both). Also, if using 64-bit, make sure that your Visual Studio project is configured to compile for an x64 target (by default it is configured to compile a 32-bit application).

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Nassah 2015-5-6

I got the similar problem.This helps!

aryan srikoti 2020-10-12

编辑：aryan srikoti 2020-10-12

Hello, I have a very similar problem, the configuration of compiler is fine and I can build the program too, when I run it however, box appears with red X mark saying. libmx.lib not found, try reinstalling the software. How to go about this ?

This is in Visual studio 2019 by the way and I'm using win64 configuration, with matlab 2015a

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