Hi guys,
Does anyone managed to complete the “Make a HTML5/Electron-based Kiosk Snap” tutorials recently on a RPi 3 running Ubuntu Core 18 (32-bits IoT for armhf architectures)?
I’m trying to complete it, but I’ve not been being able to run the snap in my RPi 3. It fails to start with many errors. I wasn’t expecting these problems because I’m just following the tutorial step-by-step and I only added an architecture section, in order to be able to build armhf compatible snap, and made a single change in the original snapcraft.yaml (replaced the line npm install electron electron-packager && by npm install --unsafe-perm=true electron electron-packager &&. Otherwise I wouldn’t have been able to build the snap.)
The complete snapcraft.yaml is bellow:
name: electron-hello-world-kiosk
version: '0.1'
summary: Hello World Electron app for a Kiosk
description: |
Simple Hello World Electron app as an example of a HTML5 Kiosk
base: core18
confinement: strict
grade: devel
architectures:
- build-on: amd64
run-on: armhf
apps:
electron-hello-world-kiosk:
command: desktop-launch xwayland-kiosk-launch "$SNAP/electron-helloworld/electron-quick-start" "--no-sandbox"
plugs:
- browser-support
- network
- network-bind
- opengl
- pulseaudio
- wayland
daemon:
daemon: simple
restart-condition: always
command: desktop-launch xwayland-kiosk-launch "$SNAP/electron-helloworld/electron-quick-start" "--no-sandbox"
plugs:
- browser-support
- network
- network-bind
- opengl
- pulseaudio
- wayland
environment:
XWAYLAND_FULLSCREEN_WINDOW_HINT: window_role="browser-window"
parts:
electron-helloworld:
plugin: nodejs
source: https://github.com/electron/electron-quick-start.git
after: [desktop-gtk3, xwayland-kiosk-helper]
override-build: |
case $SNAPCRAFT_ARCH_TRIPLET in
"i386-linux-gnu") ARCH="ia32";;
"x86_64-linux-gnu") ARCH="x64";;
"arm-linux-gnueabihf") ARCH="armv7l";;
"aarch64-linux-gnu") ARCH="arm64";;
*) echo "ERROR: electron does not support the '$SNAPCRAFT_ARCH_TRIPLET' architecture" && exit 1;;
esac
npm install --unsafe-perm=true electron electron-packager &&
./node_modules/.bin/electron-packager . --overwrite --platform=linux --arch=$ARCH --output=release-build --prune=true
cp -v -R ./electron-quick-start-linux-$ARCH $SNAPCRAFT_PART_INSTALL/electron-helloworld
stage-packages:
- libasound2
- libgconf-2-4
- libnss3
- libx11-xcb1
- libxss1
- libxtst6
build-packages:
- nodejs
- npm
- unzip
# Adapted from snapcraft-desktop-helpers https://github.com/ubuntu/snapcraft-desktop-helpers/blob/master/snapcraft.yaml#L183
desktop-gtk3:
source: https://github.com/ubuntu/snapcraft-desktop-helpers.git
source-subdir: gtk
plugin: make
make-parameters: ["FLAVOR=gtk3"]
build-packages:
- build-essential
- libgtk-3-dev
stage-packages:
- libxkbcommon0 # XKB_CONFIG_ROOT
- ttf-ubuntu-font-family
- dmz-cursor-theme
- light-themes
- adwaita-icon-theme
- gnome-themes-standard
- shared-mime-info
- libgtk-3-0
- libgdk-pixbuf2.0-0
- libglib2.0-bin
- libgtk-3-bin
- unity-gtk3-module
- libappindicator3-1
- locales-all
- xdg-user-dirs
- ibus-gtk3
- libibus-1.0-5
xwayland-kiosk-helper:
plugin: cmake
source: https://github.com/MirServer/xwayland-kiosk-helper.git
build-packages: [ build-essential ]
stage-packages: [ xwayland, i3, libegl1-mesa, libgl1-mesa-glx ]
And the errors that I got when I run the application (sudo electron-hello-world-kiosk) are here:
/snap/electron-hello-world-kiosk/x2/bin/desktop-launch: line 301: /snap/electron-hello-world-kiosk/x2/usr/bin/xdg-user-dirs-update: cannot execute binary file: Exec format error
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
realpath: '': No such file or directory
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
/snap/electron-hello-world-kiosk/x2/bin/desktop-launch: line 10: /snap/electron-hello-world-kiosk/x2/usr/bin/update-mime-database: cannot execute binary file: Exec format error
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
/snap/electron-hello-world-kiosk/x2/bin/desktop-launch: line 10: /snap/electron-hello-world-kiosk/x2/usr/lib/arm-linux-gnueabihf/libgtk-3-0/gtk-query-immodules-3.0: No such file or directory
ERROR: update-mime-database /root/snap/electron-hello-world-kiosk/x2/.local/share/mime exited abnormally with status 126
ERROR: /snap/electron-hello-world-kiosk/x2/usr/lib/arm-linux-gnueabihf/libgtk-3-0/gtk-query-immodules-3.0 exited abnormally with status 127
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
##################################################################################
If you are experiencing problems with your GUI app (e.g. bad fonts), please run:
snap connect electron-hello-world-kiosk:x11-plug electron-hello-world-kiosk:x11
##################################################################################
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/snap/electron-hello-world-kiosk/x2/lib/bindtextdomain.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
/snap/electron-hello-world-kiosk/x2/bin/xwayland-kiosk-launch: line 135: /snap/electron-hello-world-kiosk/x2/usr/bin/Xwayland: cannot execute binary file: Exec format error
/snap/electron-hello-world-kiosk/x2/bin/xwayland-kiosk-launch: line 148: /snap/electron-hello-world-kiosk/x2/usr/bin/i3: cannot execute binary file: Exec format error
/snap/electron-hello-world-kiosk/x2/bin/xwayland-kiosk-launch: line 151: /snap/electron-hello-world-kiosk/x2/electron-helloworld/electron-quick-start: cannot execute binary file: Exec format error
/snap/electron-hello-world-kiosk/x2/bin/xwayland-kiosk-launch: line 1: kill: (-29356) - No such process
To build the snap I just executed the snapcraft command.
Please let me know if you have any ideas why this could be happening. Or if anyone have already faced same problems, managed to overcome them and have the solution feel free to share it.
Thank you,
João
… but the snap build failed.
There are some critical pieces that I think are missing (mir-kiosk snap isn’t mentioned, for example).
in an effort to have a more succinct YAML), and using command-chain for the launcher scripts.