error when I try to open a file to edit

This is error that pops up when I try to open a file to edit:

>>

Error using indexing

Input argument matlab is not a valid property name.

Error in matlab.ui.internal.NotSupportedInWebAppServer (line 9)

if (s.matlab.ui.figure.ShowInWebApps.ActiveValue || ...

Error in errordlg (line 30)

matlab.ui.internal.NotSupportedInWebAppServer('errordlg');

Error in uiopen (line 188)

errordlg(err);

[Walter Roberson]

As an experiment try

restoredefaultpath; rehash toolboxcache

and try again.

Answer 1

[Walter Roberson]

As an experiment try

restoredefaultpath; rehash toolboxcache

and try again.

[Christopher Link]

That worked. Thanks!!

Answer 2

[Steven Lord]

Do you have a function you've created named settings.m? Does the command below show just one item (in a subdirectory under toolbox/matlab) or multiple items (including some of your own functions outside toolbox/matlab)?

which -all settings

/MATLAB/toolbox/matlab/configtools/settings.m

If this shows other settings.m files outside toolbox/matlab, try renaming them.