Why do I receive errors related to "getFileIn​foForTools​trip" or "getSuppor​tPackageUp​dates" when opening MATLAB?

After opening MATLAB, I get the following warnings and errors in MATLAB:

Warning: Name is nonexistent or not a directory:C:\Program Files\MATLAB\R2019b\toolbox\matlab\testframework\ui\matlabWarning: Name is nonexistent or not a directory:C:\Program Files\MATLAB\R2019b\toolbox\coder\simulinkcoder_app\backendWarning: Adding folders named 'resources' to the path is not supported:C:\Program Files\MATLAB\R2019b\toolbox\simulink\simulink\resources....Unrecognized function or variable'matlab.unittest.internal.ui.toolstrip.getFileInfoForToolstrip'.Unrecognized function or variable'matlab.internal.addons.updates.getSupportPackageUpdates'.

As a result of this, I am unable to use MATLAB. Many commands are simply not working. How can I resolve this so that I can use MATLAB?

Answer 1

[MathWorks Support Team]

The following workarounds should help resolve the issue:

1) Try recreating the path definition file for your installation. Open MATLAB and then enter the following three commands, one after the other, into the command window:

>> rehash toolboxcache>> restoredefaultpath>> savepath

Then, restart MATLAB.

2) Re-activate MATLAB by executing 'activate_matlab.exe' (on Windows) or 'activate_matlab.sh' (on Linux). More information about the location of these files and activating MATLAB is available at:

https://www.mathworks.com/matlabcentral/answers/99457-how-do-i-activate-matlab-or-other-mathworks-products

3) There could be an issue with your pathdef.m file. Follow the troubleshooting steps outlined in the following MATLAB Answers post:

https://www.mathworks.com/matlabcentral/answers/94040-why-do-i-receive-the-warning-message-warning-name-is-nonexistent-or-not-a-directory-when-i