Linux build fails due to discord-rich-presence dependency

[OTAKUWeBer]

Attempting to build a Flutter Linux desktop application using flutter_discord_rpc results in a build failure. The Rust dependency discord-rich-presence cannot be fetched or compiled, causing the Linux build to fail, even though the plugin works on Windows.

Flutter Version:

Flutter 3.38.3 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 19074d12f7 (3 weeks ago) • 2025-11-20 17:53:13 -0500
Engine • hash 8bf2090718fea3655f466049a757f823898f0ad1 (revision 13e658725d) • 2025-11-20 20:19:23.000Z
Tools • Dart 3.10.1 • DevTools 2.51.1

Error Output:

FVP_DEPS_LATEST=
SEVERE: warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
SEVERE: error: failed to get `discord-rich-presence` as a dependency of package `flutter_discord_rpc v0.1.0 (/home/weberz/.pub-cache/hosted/pub.dev/flutter_discord_rpc-1.1.0/rust)`
Building Linux application...
Error: Build process failed

Steps to Reproduce:

1. Install Flutter 3.38.3 on Linux.
2. Add flutter_discord_rpc: ^1.1.0 to pubspec.yaml.
3. Run flutter clean && flutter pub get.
4. Run flutter run -d linux.

Expected Behavior:

• Linux desktop build should succeed.
• If Linux is unsupported, documentation should indicate that.

Actual Behavior:

• Build fails on Linux due to the Rust dependency discord-rich-presence.
• The plugin works fine on Windows.

Environment:

• OS: Linux (Manjaro/Arch)
• Rust version: 1.91.1

Additional Notes:

• Warning about Rust workspace resolver appears:

  SEVERE: warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
  

• Possible solutions:

  • Fix the Rust crate or provide a Linux-compatible binary.
  • Document that Linux is not supported and prevent build attempts on Linux.

[OTAKUWeBer]

@KRTirtho Bhai pr ta check diyen.