Error message showing when starting MATLAB 2020b

Error using settings

Too many output arguments.

Error in matlab.internal.editor.PrewarmingSuppressor.isPrewarmingSuppressed

Error in matlab.internal.editor.EvaluationOutputsService.prewarmExecution

Error using settings

Too many output arguments.

Error in matlab.internal.codingui.warmupProgrammingAids

I just copy psat tool box in toolbox section of matlab after than it is showing message, whenever I open the matlab

[Moamen]

Please, help me. the same errore appeared to me, what should i do?

[Walter Roberson]

@Moamen

See my Answer; I show exactly which file you need to delete (or rename)

Answer 1

[Walter Roberson]

psat has a settings.m file that is interfering with the use of MATLAB.

If I recall correctly you can rename the psat file and it will run correctly. psat uses it to store preferences but will run without it.

[Utsavi Patil]

[Utsavi Patil]

I am getting this type of error messages when I try to open any matlab file. But I didn't understand your answer.

[Walter Roberson]

Give the command

which settings

You will get a response such as

C:\Program Files\MATLAB\R2020b\toolbox\psat\settings.m

showing a file under the psat installation directory.

Delete that file.

That will get you past that error.

You will probably not be able to run PSAT anyhow; you will probably get errors about

psatdomain not being a registered domain. see https://www.mathworks.com/matlabcentral/answers/595150-i-can-t-save-a-psat-file

[Eneko Unamuno]

Although deleting the settings command from PSAT solves this issue, I would rather suggest renaming it (e.g. to 'psat_settings.m'), and modifying the call to that file in line 231 from psat.m (version 2.1.11):

try
  psat_settings()
catch

At least this solved the problem for me.

[Moamen]

@Walter Roberson, Ok thanks very much Mr/ Roberson

I tried to delete the setting file, then rename it, but nothing happened.

then i get into internal error lines and put % before mentioned error lines but also nothing happened and error still existed, so finally i had to uninstall matlab 2021b and install it again.

Answer 2

[Amitosh Banerjee]

If you are using psat, you can get rid of this problem by setting the path back to default. MATLAB>Home> Set Path> a dialogue box opens> default. Even if the command windows show error, using normal matlab will not be a problem and if you want to use psat again, you need to change the path through set path back to the psat folder.

[Yosef Demis]

thank you now it works