Why do I get a Windows error beep when starting Matlab R2017b?

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Russell 2018-12-26

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评论： Russell 2018-12-27

When I start up Matlab (R2017b, running on Windows 10), I get a beep like the one that sounds on an error, but I don't get any pop ups or error/warning messages. Has anyone else run into this or have any idea what might be causing it?

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Answer 1

Image Analyst 2018-12-26

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https://ww2.mathworks.cn/matlabcentral/answers/437306-why-do-i-get-a-windows-error-beep-when-starting-matlab-r2017b#answer_354048

在 MATLAB Online 中打开

I don't get a beep. If you look in the command window, is anything there, or is it empty?

Do you have a startup.m file? If so, edit it

>> edit startup.m

and tell us what's in there.

Last thing to try is

>> restoredefaultpath

and restart and see if the beep has gone away.

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Russell 2018-12-27

I do not have a startup.m and restoredefaultpath didn't change anything. I boot up Matlab, get the splash screen, and a beep once the GUI itself comes up. The command window is completely empty, I don't have any editors open.

However, I did figure it out - I had a system variable MATLAB_JAVA set to override the Java version used by a previous version of Matlab (R2015a). Getting rid of that system variable got rid of the beep. Thanks for the help!

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