Can't open Simulink — undefined function or variable 'slLibraryBrowser'

I have MATLAB R2016b, full installation, OS X 10.11.6. I attempt to open a .slx file (created in MATLAB R2016b on my other machine) and get the following response:

    Warning: Undefined variable "SlCovCC" or class "SlCovCC.ConfigComp".     
    > In openmdl (line 12)    
      In openslx (line 9)    
      In open (line 159)    
      In uiopen (line 167)     

    ans =    

    Undefined function or variable 'slLibraryBrowser'.    

    Simulink.scopes.ScopeBlockSpecification failed to load    
    Simulink.scopes.TimeScopeBlockCfg failed to load    
    matlabshared.scopes.ExtensionSystem failed to load    
    Simulink.scopes.TimeScopeBlockExtensionSystem failed to load    
    Simulink.scopes.BlockScopeConfiguration failed to load    
    Simulink.scopes.TimeScopeConfiguration failed to load    
    Simulink.scopes.source.PlaybackControls failed to load    
    uiscopes.State failed to load    
    matlabshared.scopes.UnifiedScope failed to load    
    matlabshared.scopes.visual.TimeDomainVisual failed to load    
    matlabshared.scopes.visual.DisplayVisual failed to load    
    matlabshared.scopes.tool.PlotNavigation failed to load    
    matlabshared.scopes.tool.Autoscaler failed to load    
    matlabshared.scopes.tool.Measurements failed to load    
    matlabshared.scopes.GeneralUIOptions failed to load    
    matlabshared.scopes.SourceUIOptions failed to load    
    Simulink.scopes.source.WiredSource failed to load    
    uiservices.updaters.SynchronousToggle failed to load    
    uiscopes.updater.SynchronousToggle failed to load    
    matlabshared.scopes.measurements.AbstractMeasurement failed to load    
    matlabshared.scopes.measurements.AbstractCursors failed to load    
    matlabshared.scopes.measurements.TimeCursors failed to load    
    dialogmgr.DialogContent failed to load    
    dialogmgr.DialogPresenter failed to load    
    dialogmgr.DPVerticalPanel failed to load    
    dialogmgr.DialogBorder failed to load    
    dialogmgr.DBTopBar failed to load    
    dialogmgr.Dialog failed to load    
    dialogmgr.IntegerStreamGenerator failed to load    
    dialogmgr.SplitterControl failed to load    
    matlabshared.scopes.measurements.ResizableDialogContent failed to load    
    matlabshared.scopes.measurements.AbstractMeasurementDialog failed to load    
    matlabshared.scopes.measurements.AbstractCursorsDialog failed to load    
    matlabshared.scopes.measurements.TimeCursorsDialog failed to load    
    matlabshared.scopes.measurements.TriggersDialog failed to load    
    matlabshared.scopes.measurements.TogglePanelGroup failed to load    
    matlabshared.scopes.measurements.TraceSelectionDialog failed to load    
    matlabshared.scopes.measurements.AbstractCursorsHandler failed to load    
    matlabshared.scopes.measurements.TriggersCursorsHandler failed to load    
    matlabshared.scopes.measurements.DualCursorsHandler failed to load    
    matlabshared.scopes.measurements.MeasurementPanel failed to load

The Simulink file opens, and I can see my blocks, but none of the expected buttons (Run, Settings, Library, etc) are present. See screenshot.

If I enter `simulink` in the general MATLAB prompt, I get the following:

    Warning: The following error was caught while executing
    'sltemplate.internal.observers.SimulinkHistoryObserver' class destructor:
    Struct contents reference from a non-struct array object.

    Error in sltemplate.internal.observers.SimulinkHistoryObserver/delete

    Error in sltemplate.internal.observers.attach

    Error in sltemplate.internal.GalleryController

    Error in sltemplate.ui.Gallery

    Error in sltemplate.ui.Gallery

    Error in sltemplate.ui.Gallery/instance

    Error in sltemplate.ui.Gallery/getInstance

    Error in sltemplate.ui.Gallery.show

    Error in sltemplate.ui.Gallery.showCustomView

    Error in
    sltemplate.ui.StartPage>@()sltemplate.ui.Gallery.showCustomView('Start',varargin{:})

    Error in sltemplate.ui.StartPage/showStartPageFallback

    Error in sltemplate.ui.StartPage.show 
    > In sltemplate.internal.observers.attach
      In sltemplate.internal.GalleryController
      In sltemplate.ui.Gallery
      In sltemplate.ui.Gallery/getInstance/acquireDialog
      In sltemplate.ui.Gallery/instance
      In sltemplate.ui.Gallery/getInstance
      In sltemplate.ui.Gallery.show
      In sltemplate.ui.Gallery.showCustomView
      In sltemplate.ui.StartPage>@()sltemplate.ui.Gallery.showCustomView('Start',varargin{:})
      In sltemplate.ui.StartPage/showStartPageFallback
      In sltemplate.ui.StartPage.show 
    Warning: The specified superclass 'slhistory.MRUListMonitor' contains a parse error,
    cannot be found on MATLAB's search path, or is shadowed by another file with the same
    name. 
    > In sltemplate.ui.StartPage/showStartPageFallback
      In sltemplate.ui.StartPage.show 
    Undefined function or variable 'slLibraryBrowser'.

The last is a hard error (red), and no Simulink windows open.

I have tried reinstalling the Simulink toolbox, to no avail.

Answer 1

[Ankit Bhatnagar]

I understand that you are unable to open Simulink properly.

Firstly, this could be a license checkout issue. Check to see that the following command gives an output of 1.

>> license('checkout','SIMULINK')

Secondly, there may have been changes to the MATLAB path or settings. To restore the default path and clear cache, run the following commands in the command line and also delete the contents of the MATLAB prefdir which can be found by typing 'prefdir'.

>>restoredefaultpath
>>rehash toolboxcache
>>savepath

Finally, if this doesn't work, you would need to unistall and reinstall MATLAB and Simulink.

[Lennon Fong]

Thanks! u have excellently fixed my puzzles!