CODEWITHSUNDEEP
c++matlabvisual-studio-2017matlab-engine
FlorianS
FlorianS

Reputation: 116

Issu using startMATLAB in C++ with "MatlabEngine.hpp" in r2017b

In its new version 2017b, Matlab has released a new MATLAB Engine API for C++: https://fr.mathworks.com/help/matlab/calling-matlab-engine-from-cpp-programs.html

When I try to use this API, (only to start Matlab at the beginning !!), I have an issue using : 

std::unique_ptr<MATLABEngine> matlabPtr = startMATLAB();

The compilation is ok, but at the execution :

enter image description here

Here is the call stack:

matlab::engine::initSession --> matlab::engine::startMATLAB --> matlab::engine::startMATLABAsync --> engine_create_session

Now, I use a different way to do my job, but I don't want to let an issue without a solution. Can someone spot the problem with this API?

My configuration :

Upvotes: 2

Views: 1234

Answers (3)

duoduo haitang
duoduo haitang

Reputation: 1

The solution is very simple. After setting include and library folders, DONOT copy ANY dll files to your own build folder. Then, it will work.

Upvotes: 0

WhiteBear
WhiteBear

Reputation: 73

Like in the comment, I solved the issue by upgrading Matlab from R2017b to R2018b!

Upvotes: 1

Debasish Ray Mohapatra
Debasish Ray Mohapatra

Reputation: 51

Just a few days back, I had the same issue: here

So, I had raised a ticket in MATLAB for technical support. And they suggested to build the project in the following manner which works for me:

  1. Create a project and add the source file.
  2. Go to the project properties, and do the following changes(Make sure to change the architecture to X64):
  3. Under C/C++ General, add the following directory to the field ADDITIONAL INCLUDE DIRECTORIES: C:\Program Files\MATLAB\\extern\include
  4. Under C/C++ Precompiled Headers, select "Not Using Precompiled Headers".
  5. Under Linker General, add the directory to the field ADDITIONAL LIBRARY DIRECTORIES: C:\Program Files\MATLAB\\extern\lib\win64\microsoft
  6. e. Under Configuration Properties ->Debugging Add the following 2 Target paths in the Environment: PATH=C:\Program Files\MATLAB\\bin\win64;
    PATH=C:\Program Files\MATLAB\\extern\bin\win64;

  7. Under Linker Input, add the following names to the field marked ADDITIONAL DEPENDENCIES: libmat.lib
    libMatlabEngine.lib
    libMatlabDataArray.lib

  8. Make sure that the following directory is in the Windows system environment PATH:
    C:\Program Files\MATLAB\\bin\win64;
    C:\Program Files\MATLAB\\extern\bin\win64

  9. Now, build the project and run your application.

Upvotes: 1

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