I tried to execute .so file (golang file build for android) on android via flutter dart FFI. Everything works just fine when I do the same with .dll file on windows.

FFI exits with error:

E/flutter (12713): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Invalid argument(s): Failed to load dynamic library 'assets/lib.so': dlopen failed: library "assets/lib.so" not found
E/flutter (12713): #0      _open (dart:ffi-patch/ffi_dynamic_library_patch.dart:11:43)
E/flutter (12713): #1      new DynamicLibrary.open (dart:ffi-patch/ffi_dynamic_library_patch.dart:22:12)
E/flutter (12713): #2      dylib (package:proof2/fficheck.dart:7:34)
E/flutter (12713): #3      dylib (package:proof2/fficheck.dart)
E/flutter (12713): #4      runServer (package:proof2/fficheck.dart:10:5)
E/flutter (12713): #5      runServer (package:proof2/fficheck.dart)
E/flutter (12713): #6      main (package:proof2/main.dart:11:3)
E/flutter (12713): #7      _runMain.<anonymous closure> (dart:ui/hooks.dart:301:23)
E/flutter (12713): #8      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:297:19)
E/flutter (12713): #9      _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12)

The code snippet. lib is in /assets/ directory

import 'dart:ffi' as ffi;
import 'package:ffi/ffi.dart';
import 'package:ffi/src/utf8.dart';

typedef run_server = ffi.Pointer<Utf8> Function(); // FFI fn signature
typedef RunServer = ffi.Pointer<Utf8> Function(); // Dart fn signature
final dylib = ffi.DynamicLibrary.open('assets/lib.so');

final RunServer runServer =
    dylib.lookup<ffi.NativeFunction<run_server>>('RunServer').asFunction();