wx.chooseMedia返回数据出错

[hashdogcn]

版本:
mpflutter_wechat_api: ^2.2.2
代码：
wx.chooseMedia(ChooseMediaOption()
// ..mediaType = ['image']
..sourceType = ['album', 'camera']
..sizeType = ['original', 'compressed']
..count = 1
..success = (res) async {
final tempMediaFile = res.tempFiles.first;
onSuccess.call(File(tempMediaFile.tempFilePath),
File(tempMediaFile.thumbTempFilePath));
}
..fail = (err) {
LogUtil.e(err.errMsg);
onFail.call();
});
报错信息：
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: type '_Map<String, dynamic>' is not a subtype of type 'JSObject?'
#0 ChooseMediaSuccessCallbackResult.tempFiles. (package:mpflutter_wechat_api/mpflutter_wechat_api.dart:5851:45)
#1 MappedListIterable.elementAt (dart:_internal/iterable.dart:425:31)
#2 ListIterator.moveNext (dart:_internal/iterable.dart:354:26)
#3 new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189:27)
#4 new _GrowableList.of (dart:core-patch/growable_array.dart:150:28)
#5 new List.of (dart:core-patch/array_patch.dart:39:18)
#6 ListIterable.toList (dart:_internal/iterable.dart:224:7)
#7 ChooseMediaSuccessCallbackResult.tempFiles (package:mpflutter_wechat_api/mpflutter_wechat_api.dart:5852:10)
#8 WxUtil.showWxImagePicker. (package:xxxxxxx/utils/wx_util.dart:94:35)
#9 ChooseMediaOption.success=. (package:mpflutter_wechat_api/mpflutter_wechat_api.dart:5830:14)
#10 Context._installFunctionCallbackListenner. (package:mpflutter_core/mpjs/mpjs_dev_impl.dart:28:26)
#11 new DevMPJSHost. (package:mpflutter_core/dev_app/dev_mpjs_host.dart:31:29)
#12 IsolateDevServer.start (package:mpflutter_core/dev_app/dev_server.dart:104:29)

[PonyCui]

提供一个简单的 demo 复现问题看看