MATLAB: Unrecognized function or variable ‘efmenu’ error when opening a figure or app

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When I open a figure or an app in MATLAB, I get an error saying:

Unrecognized function or variable 'efmenu'.
Error using matlab.graphics.internal.figfile.FigFile/read (line 31)
Error while evaluating Figure CreateFcn.
Error using load
Unrecognized function or variable 'efmenu'.
Error using figure
Unrecognized function or variable 'efmenu'.
Error using mextglob>Get_Def_WGlob_Struct (line 153)
Error while evaluating Figure CreateFcn.
Error using figure
Unrecognized function or variable 'efmenu'.
Error using wfigmngr>createMenus (line 956)
Error while evaluating Figure CreateFcn.

Restoring my default path and rehashing my toolbox cache doesn't appear to help.

Best Answer

Please run the following command in their MATLAB command window:

set(0,'DefaultFigureCreateFcn','default')

This error may indicate that you have defined a custom CreateFcn, and this CreateFcn is now incompatible or out-of-date, causing errors when it is used.

To see if MATLAB is using a custom CreateFcn, run the following command:

get(0, 'DefaultFigureCreateFcn')

If the first command does not resolve the issue, check Add-Ons Manager to see if you have "EzyFit" installed, and if so, try uninstalling it, then restarting MATLAB.

Related Solutions

MATLAB: How to change ‘CloseRequestFcn’ property of a figure, so when the figure is reopened, it uses a different ‘CloseRequestFcn’

Modification of the 'CloseRequestFcn' can occur upon re-openging the figure using the 'CreateFcn'. Try the following example:

plot(1:10)
set(gcf, 'CloseRequestFcn', 'disp(''closing figure...''); closereq')
set(gcf, 'CreateFcn', 'set(gcf, ''CloseRequestFcn'', ''closereq'', ''CreateFcn'', '''')')
hgsave myFigure

This example creates a figure with a simple line plot. In line 2, the ‘CloseRequestFcn’ is altered to display “closing figure…” at the Command Prompt when the figure is closed. In line 3, the ‘CreateFcn’ is set to a command which resets both the ‘CloseRequestFcn’ and the ‘CreateFcn’ to their default values.

After executing the example, examine the ‘CloseRequestFcn’ and ‘CreateFcn’ properties by entering the following at the MATLAB Command Prompt:

get(gcf, ‘CloseRequestFcn’)
get(gcf, ‘CreateFcn’)

When you close the figure, you will see “closing figure…” at the MATLAB Command Prompt.

Reopen the figure by executing:

    open myFigure.fig

Then examine the ‘CloseRequestFcn’ and ‘CreateFcn’ properties. Note that both of these properties have been reset to their default values. The figure will now close properly when the user exits the figure. These new properties will be saved if you resave the figure, otherwise the ‘CloseRequestFcn’ and ‘CreateFcn’ will continue to be reset each time the figure file is loaded.

MATLAB: Do App Designer components disappear when I insert them in the canvas

This issue occurs when a MATLAB built-in function used by App Designer is shadowed by a user-created function with the same name. In this case, the issue applies to the function "split".

To confirm that this is the root cause, execute the following in the MATLAB Command Window:

>> which -all split

The very first result of this command should be \matlab\toolbox\matlab\strfun\split.m. If this is not the first result, then the root cause is that another function with the same name is shadowing the built-in 'split' function. To fix this, execute the following MATLAB commands:

>> restoredefaultpath;
>> rehash toolboxcache;

Best Answer

Related Solutions

MATLAB: How to change ‘CloseRequestFcn’ property of a figure, so when the figure is reopened, it uses a different ‘CloseRequestFcn’

MATLAB: Do App Designer components disappear when I insert them in the canvas

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