How to resolve this below error

2021 3 29
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更新时间：2021 3 31
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How to resolve this error. Please can anyone help me out so that it will help me alot in my project

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Jan
Jan 2021-3-29
编辑：Jan 2021-3-29
Please post the message as text. It is horrible to read the screenshot with scrolling in different directions.
Please be careful with the personal details you publish in the net:
I've replaced the image by a more readable version and removed the personal data.

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回答（1 个）

Jan
Jan 2021-3-29

1 个投票

The error message tells all known details already. COM4 is not available. Other ports are not availaible also. Matlab suggests to use instrfind. So did you try this already?

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Jan
Jan 2021-3-30
Why not? If the error message suggests a way to solve the problem, us this valuable hint.

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