Matlab 2023b testFeval.exe produces no output

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James Prewitt 2023-10-4

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https://ww2.mathworks.cn/matlabcentral/answers/2029214-matlab-2023b-testfeval-exe-produces-no-output

评论：檮杌 2023-10-6

采纳的回答：檮杌

I followed instructions at:

https://www.mathworks.com/help/matlab/matlab_external/test-your-build-environment.html#

The module built with no warnings and no errors.

However, when I call the program: !testFeval.exe

No output is produced. No errors and no warnings still.

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檮杌 2023-10-5

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https://ww2.mathworks.cn/matlabcentral/answers/2029214-matlab-2023b-testfeval-exe-produces-no-output#answer_1326234

Would you run MATLAB as administrator and see if it works for you?

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James Prewitt 2023-10-6

OK, I now see where the instructions say to modify the "path" variable.

I wonder why the install software does not automatically do this for you.

Thanks again.

This solves my problem...

檮杌 2023-10-6

This may be related how the function system works (or bang operator, "!"). In general, adding a specific path to PATH instructs OS which folder to refer in order to run commands. However, it is not allowed to look inside the MATLAB function system. Hence, we do not know exactly why we need to add the path but we can only follow the instruction by MW DEV.

Moreover, running mex has nothing much to do with system. I believe they are separately designed. If you do not want to add the path to PATH, you can open the exe file in your cmd. This should work too.