Q:

Camera doesn't work on Nexus 5 running Android L

The camera on the Nexus 5 has stopped working.  Coming from a reboot, I can open the camera app, see the camera is working, but as soon as I click to take a picture (or video), the app crashes (tried native and Play Store camera apps), which I then have to force close, then when I reopen the camera I get the error "Can't connect to camera".  The only way I've found fix that is to do a reboot, then the whole thing starts again. 
This is the same if I use the front or back camera. 
Does anyone know if there's a fix for this, or if Google are aware of it at least? 

A:

Go to Settings » Developer options, and deselect "Use NuPlayer".   Reboot the phone, and your camera should work again.