Invalid file identifier. Use fopen to generate a valid file identifier.

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Kavin Bharathi Vijayakumar 2021-2-25

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https://ww2.mathworks.cn/matlabcentral/answers/756064-invalid-file-identifier-use-fopen-to-generate-a-valid-file-identifier

评论： Walter Roberson 2022-11-14

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the cyclist 2021-2-25

在 MATLAB Online 中打开

It's not clear to me what the solve_TFB file is expecting, but what you've done here does seem correct. Does

help solve_TFB

provide any information?

By default calling help on a p-file will not provide information, unless they also provided an accompanying m-file with just the help info.

Walter Roberson 2021-2-25

File Absatz_Biegung.inp does not exist in the current directory, or cannot be opened.

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Aditya Jha 2022-11-14

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https://ww2.mathworks.cn/matlabcentral/answers/756064-invalid-file-identifier-use-fopen-to-generate-a-valid-file-identifier#answer_1098803

Hi!

The problem seems to have occurred because the file does not exist or cannot be opened.Try providing the correct path to the file “Absatz_Biegung.inp”.

Even after providing the correct path to input file, if it does not work, then refer to the documentation of “fopen“ and try passing fileID for the inputFile parameter.

https://www.mathworks.com/help/matlab/ref/fopen.html