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Unable to get PixyMon on Raspberry Pi


I’m currently trying to get PixyMon on my Raspberry Pi 3 so I can run multiple Pixy2 cameras. On a fresh re-image of the OS, I go through the instructions as given by this guide. At this point, I type:

sudo apt-get install qt5-default

and I get:

“Package qt5-default is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source.
E: Package ‘qt5-default’ has no installation candidate.”

Then, whenever I continue down the list, I get to

and I get:

“rmL cannot remove ‘,.PixyMon’: No such file or directory

Project ERROR: Unknown module(s) in QT: core gui widgets xml network

make: *** No targets specified and no makefile found. Stop.

cp: cannot stat ‘src/host/pixymon/PixyMon’: No such file or directory’

strip: ‘PixyMon’: No such file


What seems to be the issue? Eventually, I’d like to be able to receive input from these cameras, run it through a program, and use that to move some tank treads. Is PixyMon even a viable way to do this on the Raspberry Pi, or should I go another route?


What OS are you using on your Pi 3?



Hmm, we can’t reproduce this on Bullseye. That is,

sudo apt-get install qt5-default

doesn’t produce an error. Is it a reasonably fresh installation?


Yes- completely new from the reimage. Nothing else is on it

I was able to fix the issue. Solution here