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Avoid error while using DeviceRead["RaspiCam"] ? (Mathematica 11.0.1)

Posted 1 year ago
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In Mathematica 11.0.1 I typed

DeviceRead["RaspiCam"]

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.

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