Error: 'dart:ffi' can't be imported when compiling to Wasm

[abrarmalekji345]

Describe the bug
Can't run Flutter web WASM app after updating Flutter version to 3.27.1

Expected behavior
Should run Flutter web app compiled with Web Assembly

Screenshots

Flutter Doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.27.1, on macOS 14.5 23F79 darwin-arm64, locale en-IN)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 15.0.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2024.2)
[✓] Network resources

• No issues found!

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• Linux

[navarrete0]

Hello, what do we need to continue with this? thank you.

[abrarmalekji345]

@navarrete0 For now I had to comment printing package on pubspec.yaml to run on web-assembly.

[vladimir-boyko]

The issue still persists and is a blocker for using wasm in flutter web app

[mikeesouth]

Yeah, same here - this is one of three blockers for us when moving to wasm. Commenting it for web assembly isn't really a fix for us as the pdf package is an important part of our offering.

@DavBfr do you have any plans on supporting dart:ffi ? I haven't investigated how this package uses ffi but maybe https://pub.dev/packages/universal_ffi could be a simple solution?

[vladimir-boyko]

Yeah, same here - this is one of three blockers for us when moving to wasm. Commenting it for web assembly isn't really a fix for us as the pdf package is an important part of our offering.

@DavBfr do you have any plans on supporting dart:ffi ? I haven't investigated how this package uses ffi but maybe https://pub.dev/packages/universal_ffi could be a simple solution?

Creating fork and replacing ffi with universal_ffi did help to compile library for wasm

[vladimir-boyko]

Opened a pr to resolve issue: #1812