loadlibrary function error "failed to preprocess"

Question

Corentin Mailliet 2023-7-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1994983-loadlibrary-function-error-failed-to-preprocess

评论： Corentin Mailliet 2023-7-17

采纳的回答： Niranjan Sundararajan

在 MATLAB Online 中打开

Hi,

i have trouble with the loadlibrary function.

To make it simple, i went to the Matlab Help and tried to use the example given... (see below)

addpath(fullfile(matlabroot,'extern','examples','shrlib'))
if not(libisloaded('shrlibsample'))
    loadlibrary('shrlibsample')
end
libfunctions('shrlibsample')

and i get this error :

Error using loadlibrary

Failed to preprocess the input file.

Output from preprocessor is:'C:\Program' n'est pas reconnu en tant que commande interne

ou externe, un programme exécutable ou un fichier de commandes.

I am on Windows 10 but with alot of security restrictions that could explain this, but as i am not knowing what loadlibrary is trying to do ... i cant try to fix it.

Any idea ?

Thanks in advance

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Answer 1

Niranjan Sundararajan 2023-7-12

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1994983-loadlibrary-function-error-failed-to-preprocess#answer_1271948

Got it,

I think that the file is not able to process spaces in the function. The directory structure of windows machines is "C:\Program Files\..." but your preprocessor gives output that it does not recognize "C:\Program" as an internal or external command, operable program or batch file.

I believe you are using the MinGW-w64 compiler and that does not support spaces in its path. For more info, refer to MATLAB documentation -- https://www.mathworks.com/help/matlab/matlab_external/install-mingw-support-package.html

You can reinstall the MinGW compiler using C:\mingw-64 as the root directory. Then, your loadlibrary function should work fine.