Linux build error (Flutter snap)

[Sotneo]

Hello. I have a error while building my app. After adding to pubspec.yaml:

libwinmedia: ^0.0.6
just_audio_libwinmedia: any

Launching lib/main.dart on Linux in debug mode...
lib/main.dart:1
CMake Error at flutter/ephemeral/.plugin_symlinks/libwinmedia/.master/CMakeLists.txt:1 (cmake_minimum_required):
  CMake 3.15 or higher is required.  You are running version 3.10.2


Exception: Unable to generate build files
Exited (sigterm)

flutter doctor

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.5.1, on Ubuntu 20.10 5.8.0-63-generic, locale ru_RU.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Chrome - develop for the web
[✓] Linux toolchain - develop for Linux desktop
[✓] Android Studio (version 2020.3)
[✓] Android Studio (version 4.2)
[✓] Android Studio
[✓] VS Code (version 1.60.2)
[✓] Connected device (2 available)

• No issues found!

I use Flutter snap.

[alexmercerind]

Sorry, I can't help with snap.
Two things:

• Snap version of Flutter is packing older CMake (it's not my fault).
• Why are you using distro packages in your app when you want to pack it using snap?

[Sotneo]

Sorry, I can't help with snap.
Two things:

* Snap version of Flutter is packing older CMake (it's not my fault).

Snap version of Flutter is default(In Flutter documentation). When I find a package on pub.dev with "Linux" support badge I just add it to pubspec.yaml. Usually, It just work. Anyway, thank you for your work and answer. I will try not snaped Flutter later.

* Why are you using distro packages in your app when you want to pack it using snap?

Sorry, I don't understand you question. I don't use distro packages in my app (only pub.dev dependencies).

[bdlukaa]

@Sotneo can you try version 0.0.4?

[Sotneo]

@Sotneo can you try version 0.0.4?

Same error. I moved line:
cmake_minimum_required(VERSION 3.15)
to
if (CMAKE_SYSTEM_NAME STREQUAL "Windows") cmake_minimum_required(VERSION 3.15)
and add to Linux if
elseif (CMAKE_SYSTEM_NAME STREQUAL "Linux") cmake_minimum_required(VERSION 3.10)
And find out that libwinmedia depend on GTK 3.0 & WebKit2 4.0 libs, which we don't have inside Flutter snap. Is there any way to add packages inside snap without rebuilding it?

[alexmercerind]

I already said it.

Referencing your above comment.

I don't use distro packages in my app.

I have no experience in building snap packages or how their dependencies work unfortunately. I ship debian, flatpak packages with this library as dependency.

[Sotneo]

It is building outside of snap, if everything is installed.
sudo apt-get install clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev libwebkit2gtk-4.0-dev

[alexmercerind]

@Sotneo this library is internal dependency of Harmonoid & I have users using the app just fine on Linux. We distribute on Debian, Flatpak & AppImage.
There is no chance of it not building. For the bugs, I didn't check the latest pull requests & I'm using my pinned version to 0.0.4. I'm currently busy these days, neither able to work on app nor the libraries too much.
I'll see once I figure everything out myself.