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The Linux builds bundle their own WebKitGTK and mpv but expect the host to provide libsystemd, which obviously falls apart on a machine that doesn't have it. Same for the AppImage, tarball, deb, rpm and the AUR package. Two options. The Flatpak runs fine without systemd on the host, since its runtime carries libsystemd inside the sandbox. Or build from source, which sidesteps this completely, because your own webkit and dbus aren't linked against libsystemd to begin with. You need the Flutter SDK for that, but it's the same kind of setup as any other build dep: https://github.com/Moonfin-Client/Moonfin-Core/wiki/Building-from-Source Skip the snap, snapd wants systemd itself. Which distro are you on? |
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So it's only needing systemd because of an imported dependency? Well, that's a relief. I'll try compiling it and see how I get on. I'm using Void Linux Thanks very much for the info. Much appreciated |
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Right, nothing in Moonfin itself touches systemd. It rides in on WebKitGTK, which we bundle, and the copy we build against on a systemd distro drags the dependency along with it. Your own build won't do that. On Void you'll want the Flutter SDK plus the -devel packages for gtk+3, mpv, webkit2gtk, libsecret and sqlite, along with cmake, ninja, clang and pkg-config. Then flutter pub get and flutter build linux --release. Let me know how you get on. Gonna look into getting the prebuilt ones fixed so you're not compiling it every release. |
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Right... after untangling myself from library version hell, I managed to make an attempt at building this. This is what I did and what happened;-
At the end of the output is this (plus lots more very similar);-
...then I get lots of errors very similar to those above;- So.... sub-optimal :-) I also ran (as suggested above) |
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Pull the latest from main
…On Sat, Sep 12, 2026, 5:20 PM Rich-YoYo ***@***.***> wrote:
Right... after untangling myself from library version hell, I managed to
make an attempt at building this. This is what I did and what happened;-
- Installl flutter
Ref.
https://gist.github.com/AlifiChiganjati/54e456afa878c17eeb95700dc30413b1
# Install Java
sudo xbps-install openjdk
sudo xbps-install openjdk25
# Select Java version
sudo xbps-alternatives -s openjdk25
# Get flutter code
git clone https://github.com/flutter/flutter.git
sudo cp -pr ./flutter /opt/
# Set up user/group for flutter
sudo groupadd flutter
sudo gpasswd -a $USER flutter (add self to flutter group)
sudo chown -R :flutter /opt/flutter
sudo chmod -R g+w /opt/flutter/
- Add the following to .bashrc
export FLUTTER_ROOT="/opt/flutter/"
export PATH="$PATH:$FLUTTER_ROOT/bin"
- Run up a shell with the new $PATH definitions, then
flutter --version (this downloads and installs the dart SDK)
dart --version (verify that the dark SDK is in place)
- Install stuff for Moonfin (I already had quite a bit of this, but
just for anyone else wanting to try this)
sudo xbps-install gtk+3-devel (this drags in loads of crap)
sudo xbps-install mpv-devel (ditto)
sudo xbps-install libwebkit2gtk41-devel
sudo xbps-install libsecret-devel
sudo xbps-install sqlite-devel
sudo xbps-install ninja
sudo xbps-install clang
sudo xbps-install pkg-config
- Build Moonfin
> cd Moonfin-Core
> flutter pub get
[1/10] Material Fonts (2.3MB in 0.3s)
[2/10] Gradle Wrapper (0.1MB in 0.0s)
[3/10] Flutter SDK
├─ [1/5] sky_engine (1.5MB in 0.7s)
├─ [2/5] flutter_gpu (0.1MB in 0.3s)
├─ [3/5] flutter_patched_sdk (4.1MB in 0.8s)
├─ [4/5] flutter_patched_sdk_product (4.1MB in 0.8s)
└─ [5/5] linux-x64 (29.5MB in 1.3s)
[10/10] linux-x64/font-subset (0.8MB in 0.6s)
Resolving dependencies... (10.6s)
Downloading packages... (12.4s)
_fe_analyzer_shared 85.0.0 (108.0.0 available)
_flutterfire_internals 1.3.73 (1.3.77 available)
analyzer 7.6.0 (14.4.0 available)
analyzer_plugin 0.13.4 (0.14.17 available)
audio_service 0.18.18 (0.18.19 available)
...
....etc...
...
window_manager 0.5.1 (0.5.2 available)
xml 6.6.1 (7.0.1 available)
yaml 3.1.3 (3.1.4 available)
Changed 4 dependencies!
143 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
[app_be.arb:bookSeriesItemCount] ICU Syntax Warning: The plural part specified below is overridden by a later
plural part.
{count, plural, =1{1 кніга} one{{count} кніга} few{{count} кнігі} many{{count} кніг} other{{count} кнігі}}
^
[app_be.arb:audiobookCountLabel] ICU Syntax Warning: The plural part specified below is overridden by a later
plural part.
{count, plural, =1{1 аўдыякніга} one{{count} аўдыякніга} few{{count} аўдыякнігі} many{{count} аўдыякніг}
other{{count} аўдыякнігі}}
...
....etc... (lots of very similar lines)
At the end of the output is this (plus lots more very similar);-
"ug": 500 untranslated message(s).
"uk": 500 untranslated message(s).
"vi": 500 untranslated message(s).
"yue": 500 untranslated message(s).
"yue_CN": 500 untranslated message(s).
"yue_HK": 500 untranslated message(s).
"zh": 171 untranslated message(s).
"zh_Hant": 171 untranslated message(s).
To see a detailed report, use the untranslated-messages-file
option in the l10n.yaml file:
untranslated-messages-file: desiredFileName.txt
<other option>: <other selection>
This will generate a JSON format file containing all messages that
need to be translated.
- If I ignore the above warnings and run;-
flutter build linux --release
...then I get lots of errors very similar to those above;-
[1/1] Linux SDK
├─ [1/3] linux-x64-debug/linux-x64-flutter-gtk (17.7MB in 1.3s)
├─ [2/3] linux-x64-profile/linux-x64-flutter-gtk (9.4MB in 0.9s)
└─ [3/3] linux-x64-release/linux-x64-flutter-gtk (8.8MB in 0.9s)
[webview_win_floating] webkit2gtk library found: webkit2gtk-4.1
[app_be.arb:bookSeriesItemCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_be.arb:audiobookCountLabel] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_be.arb:seasonCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_be.arb:trackCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_be.arb:chapterCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_be.arb:episodeCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_be.arb:analyticsLibrariesCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
...etc...
[app_uk.arb:chapterCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_uk.arb:episodeCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
[app_uk.arb:analyticsLibrariesCount] ICU Syntax Warning: The plural part specified below is overridden by a later plural part.
ERROR: lib/data/models/aggregated_item.dart:216:17: Error: 'dateCreated' is already declared in this scope.
ERROR: DateTime? get dateCreated {
ERROR: ^^^^^^^^^^^
ERROR: lib/data/models/aggregated_item.dart:206:17: Context: Previous declaration of 'dateCreated'.
ERROR: DateTime? get dateCreated {
ERROR: ^^^^^^^^^^^
ERROR: Target kernel_snapshot_program failed: Exception
Building Linux application...
Build process failed
So.... sub-optimal :-)
I also ran (as suggested above) flutter pub outdated and this printed a
very long list of libraries with versions that are not as expected (at
least, that's what I think it's telling me). In which case, this might be
too broken for me to fix (the machine I'm using is in general use and I'm
not in a position to start messing about with library versions too much
because other things will break)
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Moved Moonfin to check-in ...and the same errors when running I also removed and re-installed flutter just to be sure I'd not caused a library mis-match between installing it and building Moonfin, but it made no difference. |
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That error was fixed on 8 September in e1fad7d, and b8ad0b4 is from the 14th, so the fix is in there. Your source is older than it looks. The error points at lines 206 and 216, which is exactly where the two getters sat before the fix removed one. On b8ad0b4 there is only one, at line 211. So that is not the code that got compiled. From the directory you actually build in: One hit at line 211 and you are good. Two hits and the tree is stale. A fresh clone of main is the quickest way to rule it out. Ignore the 143 packages have newer versions line and the ICU plural warnings. Both are normal, our own builds print them too, and neither is what killed your build. |
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OK, I'm an idiot. I don't know what happened there but if I press the correct buttons, it does compile ok. As you suggested, it still complains a lot, but it does generate an executable. Unfortunately, if I try and run that executable I'm not too surprised about this; Void doesn't have ready-made packages for But thanks again for all your help so far R. |
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I tried to run Moonfin but it complains about a lack of libsystemd.so.0 and my Linux doesn't use systemd
Is there any workaround for this?
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