OpenGl rendreing engine failed to initilze(urgent)

Its suddnely appears when I tried to run my app.
a check box with this text :OpenGl rendreing engine failed to initilze"

please help me
I didnt saw it before and its rely ourgent
Thanks a lot

You would have a much better chance of getting help if you include some information. For example, what rendering engine you use. What platform you’re working on, etc.

Also, since you talk about “my app”, I figure you wrote it? So if it shows a message box, it’s probably your code doing that?