startup errors in R2020b

I just installed R2020b using a site license from my university; previously I had a standalone license. When I start it up, I get a slew of errors:

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\shared\matlab_datatypes

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\matlab\codeanalysis\analysis

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\simulink\sldependency

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\matlab\connector2\academy

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\examples\comm

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\examples\ident

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\examples\phased

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\examples\predmaint

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\examples\wavelet\helper

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\gpucoder\gpucoder\checkgpuenv

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\shared\dlcoder_base\dlcoder_base\dlcodermex

Warning: Name is nonexistent or not a directory: C:\Program Files\MATLAB\R2020b\toolbox\targetdefinition\targetsdk\targetpackage

Unrecognized function or variable 'matlab.internal.editor.EvaluationOutputsService.prewarmExecution'.

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This is under Win10 Enterprise. My ver output is this:

-----------------------------------------------------------------------------------------------------

MATLAB Version: 9.9.0.1467703 (R2020b)

MATLAB License Number: <removed>

Operating System: Microsoft Windows 10 Enterprise Version 10.0 (Build 19041)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

-----------------------------------------------------------------------------------------------------

MATLAB Version 9.9 (R2020b)

Deep Learning Toolbox Version 14.1 (R2020b)

Optimization Toolbox Version 9.0 (R2020b)

Signal Processing Toolbox Version 8.5 (R2020b)

Wavelet Toolbox Version 5.5 (R2020b)

Do I need to worry about these messages? Also, I think I asked for more toolboxes/products when I did the installation, including at least the mapping toolbox, MATLAB Compiler, and maybe MATLAB Coder. The toolboxes shown above are the ones I had in my standalone installation of R2019b. Any suggestions? Thanks.

[Matthew Hopcroft]

I had the same problem, see this answer:

https://www.mathworks.com/matlabcentral/answers/633344-i-get-a-several-errors-when-starting-2020b#comment_1102749

Answer 1

[Abhisek Pradhan]

Try deleting the MATLAB shortcut and launch Matlab.exe and see if it works.