Building picamera-streaming-demo

device
1

Hello

I was attempting to build picamera-streaming-demo, and the below error was generated.
The “Ubuntu Core” image I am using is ubuntu-core-18-armhf+raspi3.img.xz.

The linker version ‘2.23’ used by the base ‘core’ is incompatible with files in this snap:
/home/ubuntu/SnapsDev/dkentry-python3-snap/prime/lib/arm-linux-gnueabihf/libexpat.so.1.6.7 (2.25)
/home/ubuntu/SnapsDev/dkentry-python3-snap/prime/usr/bin/python3.6 (2.25)
/home/ubuntu/SnapsDev/dkentry-python3-snap/prime/usr/bin/python3.6m (2.25)
/home/ubuntu/SnapsDev/dkentry-python3-snap/prime/usr/lib/arm-linux-gnueabihf/libcrypto.so.1.1 (2.25)
/home/ubuntu/SnapsDev/dkentry-python3-snap/prime/usr/lib/arm-linux-gnueabihf/libexpatw.so.1.6.7 (2.25)

picamera-streaming-demo (snapcraft.yaml, part section)
parts:
picamera:
plugin: python
python-version: python3
python-packages:
- picamera
build-environment:
- READTHEDOCS: ‘True’

2

oops, sorry, thats my fault, try changing from “base: core” to “base: core18” … i’ll fix the git tree … with the change your build (i do this in an 18.04 lxd container on a pi running core) should look similar to: https://paste.ubuntu.com/p/s74XJ999Pk/

i’ll fix the github tree …

3

Thanks

That explains a lot, I have been building on “Ubuntu Server 18 RPi”