Running an older version of app designer in a new one

Hi,

I have an app created in App Designer with the version R2021a. When I opened my app today, the following message appeared: "This app was created in MATLAB R2021a. The generated code has been updated for R2021b". When I try to run the app, it takes a long time and at the end it does not appear. In the command prompt of Matlab appears the following message: " Warning: Graphics timeout occured. To share details of this issue with MathWorks technical support, please include that this is a graphics handshaking issue with your service request" (I am attaching an image of this message, "graphic_problem"). And now when I open the app, the component UIAxes plot does not appear in the canvas and when I try to add a new UIAxes component this message appears: "Unable to add component matlab.ui.control.UIAxes. Component creation failed with error: Unrecognized method, property or field 'ServerID' for class 'matlab.graphics.primitive.canvas.JavaCanvas" (see the image "error creating UIAxes").

Do you have some idea what to do?

Thanks in advance for your comments!

Answer 1

[Cris LaPierre]

Please contact support.

[Mauricio Bassallo]

Hi Cris,

I did it. But the first attempt of solution that they gave me until now was:

"Could you try starting MATLAB from your Linux terminal via:

>>matlab -softwareopengl

After that, try to run your code again and let me know if the issue still exists."

Unfortunately, that does not work in my case because I am using MATLAB Online, as I especified in the request. So, I am waiting for an another suggestion.