I am very new to blender. I was working on a model of a ukulele. Some how I managed to delete all my lamps, the camera, and all my texture compositing nodes. Thankfully I was able to reload from a spot where every thing was ok. Lost a small bit of work no biggy. I have no idea what I did wrong. If any of you know what I might have done wrong please let me know so I do not do what ever I did wrong again.
What, randomly guess what you might have done wrong, which you won’t even verify? No thanks.
How this works is that you provide information about the problem and use screenshots or other visuals to help you explain it, and with that also provide an example .blend for troubleshooting and communicating. Perhaps then someone might be able to help, which would start from confirming that you had actually deleted something and hopefully end with the discovery of what happened.