Why do I get the error "Undefined function or variable 'onCleanup'"?

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Fabio Borza
Fabio Borza 2017-5-30
回答： Jan 2017-5-30
Hi everybody. Opening programs I get this error:
Undefined function or variable 'onCleanup'.
Error in getnicedialoglocation (line 21)
c = onCleanup(@() close(convertData.hFig));
Error in msgbox (line 324)
DefFigPos = getnicedialoglocation(DefFigPos, get(figureHandle,'Units'));
Error in errordlg (line 47)
handle = msgbox(ErrorStringCell,DlgName,'error',Replace);
Error in uiopen (line 194)
errordlg(err);
What can I do to solve the problem and start using Matlab again?

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回答（2 个）

ES
ES 2017-5-30
Something is wrong with your path.
onCleanUp resides here. It should be visible on startup.
{MATLAB Installation Directory}\toolbox\matlab\general\onCleanup.m
Try
which onCleanup
restoredefaultpath
commands
Jan
Jan 2017-5-30
The first point to start is asking the docs about this function. In the current version found on the MathWorks pages (and found by Google):
https://www.mathworks.com/help/matlab/ref/oncleanup.html
There it is mentioned, that the function was "Introduced in R2008a". Do you run an older version? Then it would be useful, if you mention this.

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