Why do I see the error "Caught unexpected fl::except::IInternalException" when using the "plot" function?

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MathWorks Support Team 2018-2-26

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https://ww2.mathworks.cn/matlabcentral/answers/384960-why-do-i-see-the-error-caught-unexpected-fl-except-iinternalexception-when-using-the-plot-func

评论： Walter Roberson 2018-8-9

采纳的回答： MathWorks Support Team

When I have a plot function in my code it does not plot. Instead it gives this error:

ERROR : Caught unexpected fl::except::IInternalException

What does this mean and how is it fixed?

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Answer 1

MathWorks Support Team 2018-2-26

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This error might appear if you have another function named "plot" on your path. Execute the following line to identify all functions named "plot" on your path.

>> which -all plot

If there is a user-defined function listed above the built-in, it may need to be renamed or removed from your path.

Note that you may see a number of other plot functions that are located in the MATLAB install directory. This is expected. They implement specific functionality for other built-in classes.