Unrecognized function or variable at startup screen

Dear Developers,

After installing Matlab2019b and all of its packages at a WIndows 10 laptop, I obtain the following error messages at the startup screen of Matlab:

I activated Matlab using my University's licence.

Warning: Name is nonexistent or not a directory: C:\Program

Files\MATLAB\R2019b\toolbox\matlab\hds

Unrecognized function or variable 'connector.ensureServiceOn'.

Unrecognized function or variable 'connector.ensureServiceOn'.

Unrecognized function or variable 'connector.ensureServiceOn'.

Unrecognized function or variable

'matlab.supportpackagemanagement.internal.getInstalledSupportPackagesInfo'.

Unrecognized function or variable 'connector.ensureServiceOn'.

Unable to resolve the name connector.resetLocalePreference.

Unrecognized function or variable 'connector.ensureServiceOn'.

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

I would be grateful for any help or suggestion.

[Daniel Villa]

I get the exact same problem on my Windows 10 Laptop. I installed and uninstalled Matlab 2019b.

[Arthur Kenton]

Installing 2020a (from previously 2019a) I've had similar problems with error messages concerning this:

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

I found the answer from a matlab person.....but can't find it again..

Here's what I did... it fixed it..

restoredefaultpath

rehash toolboxcache

savepath

[Matthew Anderson]

That worked for me! Thank you!

[rayees ahmad lone]

thankyou

Answer 1

[Daniel Villa]

The errors went away if I opened matlab.exe instead of the shortcut for matlab on the desktop.

[Daniel Villa]

I had the same experience for 2020a and the same solution. I do not know why my windows 10 laptop does this.