'Too many ouput arguments' error when trying to obtain an MWArray from .dll function in C#.

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Owen Bevan 2020-6-28

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https://ww2.mathworks.cn/matlabcentral/answers/556195-too-many-ouput-arguments-error-when-trying-to-obtain-an-mwarray-from-dll-function-in-c

评论： Owen Bevan 2020-6-29

I am receiving the error message 'Too many ouput arguments' from my function in C# after using the library compiler to use my matlab function in C#. The line that is producing the error looks like this:

MWArray[] result2 = magicmod.mymagic(b);

I am expecting to receive an MWArray from my function (which is very simple so I don't think it is anything going wrong inside the function). 'b' is just an integer that is being fed in to the function.

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Answer 1

Owen Bevan 2020-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/556195-too-many-ouput-arguments-error-when-trying-to-obtain-an-mwarray-from-dll-function-in-c#answer_458608

Found the solution, the input to the function wasn't in the form MWNumericArray, I was just putting an integer in. Despite the error code it was actually the input that was the issue not the output.

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Answer 2

Shojiro SHIBAYAMA 2020-6-29

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First, I recommend you to check the datatype of the output of the `magicmod.mymagic`. Or, you should just show us how the original function works on MATLAB.

Second, if `magicmod.mymagic` returns an integer, the array does not seem to be fit to the output of the function on C#.