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engwindemo.exe - Entry Point Not Found

조회 수: 3(최근 30일)
Gary 2017년 12월 10일
댓글: Gary 2019년 12월 17일
I want to use MATLAB as a COM server, so I was testing the COM interface using engwindemo.c as described in
Whilst there are a couple of other compile parameters required if creating engwindemo.exe using Visual Studio 2013 and above, once I compiled engwindemo.exe and ran it, the MATLAB Command Window opens and then I get the following error message:
"The procedure entry point could not be located in the dynamic link library
C:\Program Files\MATLAB\R2017b\bin\win64\libmwms.dll"
(See attached screenshot 2017-12-10 MATLAB engwindemo.exe error).
When I click "OK" to that error message I get a second error message:
"Can't start MATLAB engine"
(see attached screenshot 2017-12-10 engwindemo.exe error (2)).
The error would appear to originate in the "engOpen" command in engwindemo.exe:
* Start the MATLAB engine
if (!(ep = engOpen(NULL))) {
MessageBox((HWND)NULL, (LPSTR)"Can't start MATLAB engine",
(LPSTR) "Engwindemo.c", MB_OK);
I've tried creating engwindemo.exe in Visual Studio 2013, 2015 & 2017, each time I get the same result.
Here is the compilation configuration:
Any help would be greatly appreciated.
Thank you in advance.
  댓글 수: 3
Gary 2018년 1월 3일
Hi Walter
Good question ...
I checked the VS2013 Configuration Manager and all configurations are x64, (as per the compilation configuration spec above).
(C:\Users\garymarshall\Documents\Visual Studio 2013\Projects\engwindemo\x64\Debug\engwindemo.exe)
Regards Gary

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kuan jiang
kuan jiang 2019년 12월 17일
I also have the same question ,did you figure it out ?
  댓글 수: 1
Gary 2019년 12월 17일
I reported the problem to Mathworks Technical Support, on 8-Jan-2018 (case #02909721 regarding 'Can't start MATLAB engine') and after a short email exchange with Support agent Zhi Dou, we ended up having a Remote Support Session, which ultimately resolved the issue.
Unfortunately, I did not documentation the solution.
It is almost 2 years ago, and I don't remember the details, (plus I've upgraded regularly since then and never experienced the problem again). So other than suggesting that you contact Technical Support quoting the case reference number above, I'm afraid I can't help you.
I will say, I found the Technical Support Department excellent. They were very responsive, highly knowlegable and solved the problem very quickly. Kudos to them, so I have no hesitation recommending that you use them.

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