🐛 - ZSTDcompressBound not found on macoslinux

[pcarrier]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Zstandard macOS

Which platforms are affected?

macOS

Description

when trying to deploy from Mac with https://github.com/pcarrier/bob

Reproducing the issue

flutter create --platforms macos demo
cd flutter
flutter pub add zstandard

Change the first lines of lib/main.dart to:

import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:zstandard/zstandard.dart';

void main() async {
  final zstandard = Zstandard();
  Uint8List original = Uint8List.fromList('Hello world!'.codeUnits);
  Uint8List? compressed = await zstandard.compress(original, 3);
  Uint8List? decompressed = await zstandard.decompress(compressed!);
  print(String.fromCharCodes(decompressed!));
}

and when trying to flutter run on macOS:

2025-11-15 18:56:03.051 demo[71132:1988071] Running with merged UI and platform thread. Experimental.
[ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: Invalid argument(s): Failed to lookup symbol 'ZSTD_compressBound': dlsym(0x73d3a820, ZSTD_compressBound): symbol not found
#0      DynamicLibrary.lookup (dart:ffi-patch/ffi_dynamic_library_patch.dart:33)
#1      ZstandardMacosBindings._ZSTD_compressBoundPtr (package:zstandard_macos/zstandard_macos_bindings_generated.dart:188)
#2      ZstandardMacosBindings._ZSTD_compressBound (package:zstandard_macos/zstandard_macos_bindings_generated.dart)
#3      ZstandardMacosBindings.ZSTD_compressBound (package:zstandard_macos/zstandard_macos_bindings_generated.dart)
#4      ZstandardMacOS.compress (package:zstandard_macos/zstandard_macos.dart:49)
#5      Zstandard.compress (package:zstandard/zstandard.dart:24)
#6      main (package:demo/main.dart:8)
#7      _runMain.<anonymous closure> (dart:ui/hooks.dart:345)
#8      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:314)
#9      _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:193)

Flutter Version

3.38.1

Relevant Log Output

Flutter dependencies

Expand Flutter dependencies snippet

Replace this line with the contents of your `flutter pub deps -- --style=compact`.

Additional context and comments

No response

[elisalopez]

🪄 Automatic Actions

1. The issue was assigned to @efraespada.
2. The issue's title was updated from ZTSD_compressBound not found on macos to 🐛 - ZTSDcompressBound not found on macos.
3. The issue was linked to Landa Messenger Development and moved to the column Todo.
4. Priority set to P0 in Landa Messenger Development.

🚀 Happy coding!

[elisalopez]

🪄 Automatic Actions

1. The issue's title was updated from 🐛 - ZSTD_compressBound not found on macos to 🐛 - ZSTDcompressBound not found on macos.

🚀 Happy coding!

[adauriac]

Same on Linux.