In Mathematica 11.0.1 I typed
and received the error message "Error enabling camera-preview".
I ran in a terminal using sudo Mathematica and got a number of error messages the first of which is shown below:
mmal: mmal_VC_component_enable: failed to enable component: ENOSPC Output port couldn't be enabled.
How do I fix this?
I got the same message, The Python 3 code that was reference worked great, got a preview and worked as advertised.
Did you manage to fix the issue? I am using Mathematica (11.3.0) on the Pi and I am having the same issue. The camera works with Python 3, however, I DeviceRead is unable to access it.
Arun, sorry that I do not know the answer since I have ceased development with RPi. Jerry.