Help RE: Cannot find builtin function 'whos'

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Dominic Saunderson
Dominic Saunderson 2018-3-28
评论： Jan 2018-3-28
Last night MATLAB 2017b worked fine, but when I opened it this morning, there was a popup message which said
This was accompanied by the following in the Command Window:
Following the instructions in the warning just repeated the initial popup message and declared "Undefined function or variable 'computer'.
Any ideas what I have done, or how to fix it? I have never even heard of builtin before.

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Jan
Jan 2018-3-28
Something has destroyed your Matlab folder. Either important function have been deleted or destroyed.
The solution is simple: Restore the Matlab folder from your backup. Under Windows the "Recent Versions" might be useful. If you do not have a backup - bad idea. You have to re-install Matlab.
Actually modifying the Matlab program folder should work with admin privileges only, therefore it is recommended not to work with such high permissions.
  2 个评论
Dominic Saunderson
Dominic Saunderson 2018-3-28
No backup I'm afraid, so I guess I'll have to re-install it!
Thanks Jan, your answers are always very clear and patiently explained for beginners.
Jan
Jan 2018-3-28
You are welcome. This is the right time to create a backup for all your data.

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