Error starting up matlab 2019b

Unrecognized function or variable 'matlab.unittest.internal.ui.toolstrip.getFileInfoForToolstrip'.

Unrecognized function or variable 'connector.ensureServiceOn'.

Unrecognized function or variable 'connector.internal.lifecycle.callConnectorStarted'.

Unrecognized function or variable 'matlab.supportpackagemanagement.internal.getInstalledSupportPackagesInfo'.

Unrecognized function or variable 'matlab.internal.addons.updates.getSupportPackageUpdates'.

Answer 1

[Prabhanjan Mentla]

This is related to cache issue as MATLAB caches files on search path. Refer below links for more details.

https://www.mathworks.com/matlabcentral/answers/390813-why-s-getfileinfofortoolstrip-missing-after-update-to-r2018a

https://www.mathworks.com/help/matlab/search-path.html