Cannot focus a disabled or invesilbe window

[Henrique Proença]

Can anyone explain me why suddently this occurs!!!
I happens everytime I insert a new extension point.

Thanks in advance,
HDLP

[Kalburgiga]

Try to open the StartUML application couple of times and it works without giving this error. After doing so if the error persists then reinstall the application to make it work without any errors. Also try from the start menu once, it works sometimes.

I got this error when I moved the desktop icon to quick launch folder. When I reinstalled and used the desktop icon it works.

[LeStefou]

I've got the same message. I think it's because your "Message" window is auto-hidden or hidden, and the system wants to access to it.
Cheers,

[iperiz]

I do not know what the cause is, but I have exactly the same problem.

Message box "Cannot focus a disabled or invisible window" appears continuously

I cannot work anymore

[jorgerocha]

Hi,

I've solved my problem setting Output, Model Explorer and Properties windows to Visible. After this just re-open your model and you will be fine.

[]s
JRG

[Aneel B]

Thank you. The suggestion to make the output, model exp and prop. windows visible solved my problem.