This is a harmless warning, anyway it has been fixed by this commit which will be released soon: https://github.com/Bumblebee-Project/Bumblebee/commit/25387e92822fb1a56fa43f1f9f636b987018d068
This is a harmless warning, anyway it has been fixed by this commit which will be released soon: https:/ /github. com/Bumblebee- Project/ Bumblebee/ commit/ 25387e92822fb1a 56fa43f1f9f636b 987018d068