sdk
sdk copied to clipboard
ffi.DynamicLibrary. Error in open loading vs2012 compiled DLL
I have sought various ways and tried various ways. There is still this problem. The following is a screenshot of my system parameter information and error reporting。 Operating system: Windows Dart environment: dart SDK version: 2.17.5 (stable) (Tue Jun 21 11:05:10 2022+0200) on "windows_x64" Compiling DLL environment: vs2012 Error reporting log: Unhandled exception: Invalid argument(s): Failed to load dynamic library './full_all/Dll164.dll': error code 126 #0 _open (dart:ffi-patch/ffi_dynamic_library_patch.dart:12:43) https://github.com/flutter/flutter/pull/1 new DynamicLibrary.open (dart:ffi-patch/ffi_dynamic_library_patch.dart:23:12) https://github.com/flutter/flutter/pull/2 main (file:///c:/Users/Administrator/Desktop/dart/newuser.dart:27:40) https://github.com/flutter/flutter/pull/3 _delayEntrypointInvocation. (dart:isolate-patch/isolate_patch.dart:295:32) https://github.com/flutter/flutter/issues/4 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)
c code `#include <windows.h>
int add(int a, int b){ return a + b; }
void showBox(){ MessageBox(NULL,"Hello Dart","Title",MB_OK); }`
dart code `iimport 'dart:ffi' as ffi; import 'dart:io' show Platform, Directory; import 'package:path/path.dart' as path;
void main(List<String> args) { final _kernel32 = ffi.DynamicLibrary.open( path.join(Directory.current.path, 'full_all', 'Dll164.dll')); print(_kernel32); } `
Screenshot of operation
The same problem, the following figure is the result I detected with sigcheck
/cc @dcharkes
@xz-zone, error code 126 on Windows often is missing dependencies. See https://stackoverflow.com/a/14362289/8136619.
In order for me to troubleshoot your problem, please provide a repository with a minimal reproduction. Please include the Dart and C source code and the specific reproduction steps (especially how you build the C sources to a dynamic library). Also, please specify the specific versions of all tools used. (What version of vs2012?)
Do you succeed with using other compilers? For example with clang?
@xz-zone, error code 126 on Windows often is missing dependencies. See https://stackoverflow.com/a/14362289/8136619.
In order for me to troubleshoot your problem, please provide a repository with a minimal reproduction. Please include the Dart and C source code and the specific reproduction steps (especially how you build the C sources to a dynamic library). Also, please specify the specific versions of all tools used. (What version of vs2012?)
Do you succeed with using other compilers? For example with clang?
I use the tool visual studio 2012
@xz-zone did you resolve this issue? If so, how?