matlab add ons does not want to start

Error using matlab.internal.cef.webwindow/errorOnInValidWindow

Webwindow is not valid. It was closed by user or the process was terminated.

Error in matlab.internal.cef.webwindow/bringToFront (line 673)

obj.errorOnInValidWindow()

Error in matlab.internal.webwindow/bringToFront (line 225)

bringToFront(obj.impl)

Error in matlab.internal.addons.AddOnsWindow/bringToFront (line 72)

obj.webwindow.bringToFront();

Error in matlab.internal.addons.Explorer/bringToFront (line 73)

obj.addOnsWindowInstance.bringToFront();

Error in matlab.internal.addons.launchers.showExplorer (line 138)

matlab.internal.addons.Explorer.getInstance.bringToFront;

Answer 1

[Naren]

Hello Gihahn,

I believe the error message you are getting indicates that a MATLAB web window is no longer valid because it has been closed by the user or the process was terminated unexpectedly. The specific function that triggered the error is trying to bring the web window to the front, but it cannot do so because the window no longer exists.

The error may also be caused by security software on your machine. Please try temporarily disabling any security software and access the Add-Ons Explorer again.

You can attempt restarting MATLAB or opening the web window again to fix this problem. If the issue persists, you might need to look into it more to find out what caused the window to close or the procedure to end abruptly.

Hope this resolves the issue.

Answer 2

[Gowthami]

Hello Gihahn,

This may be related to a known issue where unexpected behaviour occurs when using the Add-On Explorer or Add-On Manager.

The issue is caused by anti-virus software incorrectly flagging the Window Manager in MATLAB.

I recommend you go through the workaround mentioned in the following MATLAB Answer to resolve your issue - https://www.mathworks.com/matlabcentral/answers/1874312-trend-micro-s-security-software-prevents-matlab-s-access-to-matlabwindow-exe-file-inhibiting-web