Application icon not found, even though it's installed

Platform
1

I’m having a problem with the application icon, when the app starts, it outputs:

Gtk-WARNING **: 08:49:27.094: Failed to load icon /run/host/share/icons/hicolor/scalable/apps/io.github.otaxhu.MQTTy.Devel.svg: Error opening file /run/host/share/icons/hicolor/scalable/apps/io.github.otaxhu.MQTTy.Devel.svg: No existe el fichero o el directorio

I tested it in both flatpak and host (fedora) environments, according to documentation, the application icons are searched under ${XDG_DATA_DIRS}/icons/hicolor/scalable/apps/APPID.svg

In GTK Inspector, the XDG_DATA_DIRS env variable has this value (in flatpak):

app/share:/usr/share:/usr/share/runtime/share:/run/host/user-share:/run/host/share

The icon is installed under /app/share but the application just ignores it and skips up to the last component /run/host/share

How the icon is installed

I’m just using Meson’s install_data function, with arguments:

prefix = get_option('prefix')
datadir = prefix / 'share'
iconsdir = datadir / 'icons'

install_data(
    'icons/scalable/apps/@0@.svg'.format(application_id),
    install_dir: iconsdir / 'hicolor' / 'scalable' / 'apps',
)

The option prefix has the value /app when running under flatpak-builder command and /usr/local when running on host

2

Are you sure application_id has the value io.github.otaxhu.MQTTy.Devel?

3

Yes, I have it as a variable initialized like this:

base_id = 'io.github.otaxhu.MQTTy'

if get_option('profile') == 'development'
  application_id = '@0@.Devel'.format(base_id)
else
  application_id = base_id
endif

And profile option is development, since is harcoded in flatpak manifest

4

Does that mean you have a meson_options.txt with something equivalent to:

option(
  'profile',
  type: 'combo',
  choices: [
    'release',
    'development',
  ],
  value: 'release',
)

If you have the code uploaded somewhere, that’d help debug this.

5

positive, I do have something similar.

The repository is GitHub - otaxhu/MQTTy: MQTTy - A Native GUI MQTT Client

6

In the last commit from main branch, I’m building the flatpak manifest under build-aux/io.github.otaxhu.MQTTy.Devel with the command:

cd build-aux && flatpak-builder --user --install --force-clean  app io.github.otaxhu.MQTTy.Devel
7

Really weird, the app icon is there for me:

image
image1444×1044 73.4 KB

Are you sure all build cache is cleared? (.flatpak-builder as well as app)

edit: If you meant that main works, but not your new approach, could you make a temporary branch?

8

No, I meant that it’s not working with that command.

In that specific window I get the “not found” icon (The square one with an exclamation mark)

9

No luck

imagen
imagen420×391 14.9 KB

I tried flatpak uninstall --delete-data io.github.otaxhu.MQTTy.Devel and removing the .flatpak-builder and app directories

10

I’m a bit confused though, because the code you posted isn’t the same as the code in main?

11

No, it isn’t, it was just how I remembered it.

12

This is how the app flatpak directory looks like

imagen
imagen418×424 22.3 KB

It seems that both icons are correctly installed.

13

I’m not sure, you’re correct, they’re installed correctly, and the output of XDG_DATA_DIRS is also correct, and it even works on my machine. Somehow the lookup is at the wrong place for you, but I wouldn’t know what causes that, sorry.

14

Thank you @monster for testing the app.

Solved the problem, it was a cache icon problem in a previous installation of the app I had in /usr prefix (in normal cases nobody should install any app in that prefix).

I uninstalled the app, but the cache wasn’t cleared, I guess the OS though that the icon was still there, but it wasn’t.

Just ran the command and it worked in both flatpak and host environment:

sudo gtk_update_icon_cache -f /usr/share/icons/hicolor
1 Like