I cannot successfully compile the mosquitto example code at Ubuntu Intel desktop. https://github.com/snapcore/snapcraft/tree/master/demos/mosquitto However, I cannot compile it successfully on dragonboard (under classic). (classic)liu-xiao-guo@localhost:~/apps/mosquitto$ snapcraft "grade" property not specified: defaulting to "stable" DEPRECATED: Found a "/" in the name of the 'mqtt-paho/python3' part DEPRECATED: The 'python3' plugin's functionality has been replaced by the 'python' plugin, and it will soon be removed. 'ascii' codec can't encode character '\u29f8' in position 49: ordinal not in range(128) When I run snapcraft search on dragonboard, and it shows: (classic)liu-xiao-guo@localhost:~$ snapcraft search PART NAME DESCRIPTION checkbox Part that supplies the latest stable version of the Checkbox t... checkbox-dev Part that supplies the latest stable version of the Checkbox t... checkbox-ng-dev Part that supplies the latest stable version of the Checkbox t... checkbox-support-dev Part that supplies the latest stable version of the Checkbox t... curl A tool and a library (usable from many languages) for client s... desktop-glib-only Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop-gtk2 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop-gtk3 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop-qt4 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop-qt5 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop-ubuntu-app-platform Helpers for qt5 minimal launchers. This one is for ubuntu-app-... desktop/glib-only Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop/gtk2 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop/gtk3 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop/qt4 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. desktop/qt5 Helpers for gtk2, gtk3, qt4 and qt5 or glib minimal launchers. dnsmasq Network infrastructure swiss-army knife ffmpeg This sets up ffmpeg for projects. gtkconf This sets up the GTK environment for GTK-based projects indicator-gtk2 Parts to show app-indicators for gtk2, gtk3, qt4 and qt5. indicator-gtk3 Parts to show app-indicators for gtk2, gtk3, qt4 and qt5. indicator-qt4 Parts to show app-indicators for gtk2, gtk3, qt4 and qt5. indicator-qt5 Parts to show app-indicators for gtk2, gtk3, qt4 and qt5. 'ascii' codec can't encode character '\xae' in position 40: ordinal not in range(128) (classic)liu-xiao-guo@localhost:~$ snapcraft --version 2.22.1 The same error appears. I am not sure whether it is the could part problem or it is related to the snapcraft.