Error message whenever stepwise is run

As a simple test, I did the following:

dog =

     1     2     6
     2     3     7
     3     4     8
     4     5     9
     5     6    10

cat =

   101
   102
   103
   104
   105

Running  stepwise(dog, cat) results in the following error: 
Message Catalog MATLAB:hg:uicontrol was not loaded from the file. Please check file location, format or
contents
 
Caught "std::exception" Exception message is:
Message Catalog MATLAB:gbtobjects was not loaded from the file. Please check file location, format or contents
Caught "std::exception" Exception message is:
Message Catalog MATLAB:gbtobjects was not loaded from the file. Please check file location, format or contents
Caught "std::exception" Exception message is:
Message Catalog MATLAB:gbtobjects was not loaded from the file. Please check file location, format or contents

[Adam Danz]

We need to see the line that generate this error (the line that calls stepwise) and the inputs.

[Mark Walton]

Thanks for the reply. Actually I gave all of that information. The line that calls stepwise is:

stepwise(dog, cat)

The inputs are the two test variables, dog and cat. I should say, though, that I get this error with every input variables I have tried.

[Adam Danz]

The error message contains stepwise(dot,cat) but that doesn't necessarily mean that's the line you called that caused the error.

Based on these answers below, you may be missing an fclose(fid).

• https://www.mathworks.com/matlabcentral/answers/124335-caught-std-exception-exception-message-is-message-catalog-matlab-builtins-was-not-loaded-from-th
• https://www.mathworks.com/matlabcentral/answers/65838-matlab-error-message-catalog-matlab-interpreter-was-not-loaded

[Mark Walton]

Thanks for following up, Adam. I think I am not doing a good job of explaining what I am doing. If I start with no variables in the workspace, create the "dog" and "cat" variables, and then run stepwise(dog, cat) then I get the error. In other words, the following code generates the error every time:

clear
dog = [1:5; 2:6; 6:10];
cat = 101:105;
dog = dog'
cat = cat'
stepwise(dog, cat)

There are no other lines of code.

[Jon]

When I run the commands you list above it opens the user interface and does not give any errors. I am running ver 2020A. So it does not seem to be a general bug, but something specific to your setup or situation.

[Mark Walton]

Thanks, Jon. I agree -- I doubt that this is a general bug.

It must be some setting of mine that is causing trouble. I'm just not sure how to figure out what it is. :-)

[Adam Danz]

Did you look into those links I provided?

Other users got similar error message when too many files were open using fopen.

If that's the problem, "fclose all" should fix it.

[Mark Walton]

Thanks Adam,

Running "fclose all" didn't solve it. Interestingly, the following command generates no error:

stepwisefit(dog, cat)

That leads me to wonder if, perhaps, the problem is some graphics setting that got changed, That is, "stepwise" generates an error because it produces a GUI interface, but "stepwisefit" works fine, because it doesn't.

Maybe?

In case this helps, running "info = rendererinfo(gca)" yields:

GraphicsRenderer: 'OpenGL Hardware'

Vendor: 'NVIDIA Corporation'

Version: '4.6.0 NVIDIA 388.16'

RendererDevice: 'NVS 315/PCIe/SSE2'

Details: [1×1 struct]

[Adam Danz]

Does the problem persist after restarting Matlab?

Have you tried setting opengl software?

[Mark Walton]

The problem persists after restarting Matlab. I haven't tried setting opengl software. I am not completely sure how to do that. (Sorry.)

[Adam Danz]

Type opengl info and copy that info into a text file so you know what you started with.

Then type opengl software to change from hardware to software.

Likewise for other versions

opengl software

opengl hardware

opengl hardwarebasic

[Walter Roberson]

Try

restoredefaultpath
rehash toolboxcache

and then run your code with stepwise(). If it works, then you probably have a conflicting function from a third-party toolbox on your regular MATLAB path.

[Mark Walton]

Thanks Adam and Walter,

Unfortunately, neither of those worked. After running "opengl software" I still can't run stepwise and now I get an error message when I run "opengl info", "opengl hardware", or "opengl hardwarebasic".

The error message is:

Message Catalog MATLAB:class was not loaded from the file. Please check file location, format or contents

Even running "opengl info" yields that error message now. "Stepwise fit" still works.

[Adam Danz]

This suggestion might be helpful

https://www.mathworks.com/matlabcentral/answers/127897-unexpected-error-message-showing-std-exception#answer_135346

The file described in that answer was found in the directory below on my system (r2019b)

C:\Program Files\MATLAB\R2019b\resources\MATLAB\en

If that file is where it should be, then perhaps you should contact tech support.

https://www.mathworks.com/support/contact_us.html

[Walter Roberson]

Once you get the error message about message catalog you probably have to quit MATLAB and restart it.