Flutter intl_phone_number_input的getRegionInfoFromPhoneNumber函数报错求助

我在使用Flutter的intl_phone_number_input包（0.7.1最新版本）中的getRegionInfoFromPhoneNumber函数时遇到问题：该函数此前可正常运行，但今日测试时出现以下错误。

错误详情 #

TypeError: Cannot read properties of undefined (reading 'PhoneNumberUtil')
 at getRegionInfo (http://localhost:51866/packages/libphonenumber_web/src/libphonenumber_plugin.dart.lib.js:56:58)
    at getRegionInfo.next (<anonymous>)
    at runBody (http://localhost:51866/dart_sdk.js:40660:34)
    at Object._async [as async] (http://localhost:51866/dart_sdk.js:40691:7)
    at libphonenumber_plugin.LibPhoneNumberPlugin.new.getRegionInfo (http://localhost:51866/packages/libphonenumber_web/src/libphonenumber_plugin.dart.lib.js:55:20)
    at getRegionInfo (http://localhost:51866/packages/libphonenumber_plugin/src/phone_number_util.dart.lib.js:49:75)
    at getRegionInfo.next (<anonymous>)
    at runBody (http://localhost:51866/dart_sdk.js:40660:34)
    at Object._async [as async] (http://localhost:51866/dart_sdk.js:40691:7)
    at PhoneNumberUtil.getRegionInfo (http://localhost:51866/packages/libphonenumber_plugin/src/phone_number_util.dart.lib.js:48:20)
    at getRegionInfo (http://localhost:51866/packages/intl_phone_number_input/src/utils/phone_number/phone_number_util.dart.lib.js:158:65)
    at getRegionInfo.next (<anonymous>)
    at runBody (http://localhost:51866/dart_sdk.js:40660:34)
    at Object._async [as async] (http://localhost:51866/dart_sdk.js:40691:7)
    at PhoneNumberUtil.getRegionInfo (http://localhost:51866/packages/intl_phone_number_input/src/utils/phone_number/phone_number_util.dart.lib.js:157:20)
    at getRegionInfoFromPhoneNumber (http://localhost:51866/packages/intl_phone_number_input/src/utils/phone_number/phone_number_util.dart.lib.js:476:68)
    at getRegionInfoFromPhoneNumber.next (<anonymous>)
    at runBody (http://localhost:51866/dart_sdk.js:40660:34)
    at Object._async [as async] (http://localhost:51866/dart_sdk.js:40691:7)
    at PhoneNumber.getRegionInfoFromPhoneNumber (http://localhost:51866/packages/intl_phone_number_input/src/utils/phone_number/phone_number_util.dart.lib.js:474:20)
    at upload_data_form._UploadDataFormState.new.<anonymous> (http://localhost:51866/packages/excelit/widgets/remember_me.dart.lib.js:13587:84)
    at Generator.next (<anonymous>)
    at runBody (http://localhost:51866/dart_sdk.js:40660:34)
    at Object._async [as async] (http://localhost:51866/dart_sdk.js:40691:7)
    at http://localhost:51866/packages/excelit/widgets/remember_me.dart.lib.js:13531:218
    at _RootZone.runUnary (http://localhost:51866/dart_sdk.js:40511:59)
    at _FutureListener.then.handleValue (http://localhost:51866/dart_sdk.js:35438:29)
    at handleValueCallback (http://localhost:51866/dart_sdk.js:35999:49)
    at _Future._propagateToListeners (http://localhost:51866/dart_sdk.js:36037:17)
    at [_completeWithValue] (http://localhost:51866/dart_sdk.js:35872:23)
    at async._AsyncCallbackEntry.new.callback (http://localhost:51866/dart_sdk.js:35906:35)
    at Object._microtaskLoop (http://localhost:51866/dart_sdk.js:40778:13)
    at _startMicrotaskLoop (http://localhost:51866/dart_sdk.js:40784:13)
    at http://localhost:51866/dart_sdk.js:36261:9

代码场景说明 #

我的代码会逐行读取Excel文件并创建Client对象，处理后的手机号格式为+96181816583这类合法格式，代码示例如下：

//TEMPLIST: [Client A, Mr. Ahmad, ahmad@mindit.com, Lebanon, Beirut, Badaro, 96181816583, -, -]
//处理后的手机号为 +96181816583，格式合法

PhoneNumber number1 = await PhoneNumber
    .getRegionInfoFromPhoneNumber(
        (tempList.elementAt(6).substring(0, 1) != '+')
            ? '+${tempList.elementAt(6).replaceAll(' ', '')}'
            : tempList.elementAt(6).replaceAll(' ', ''),)
    .onError((error, stackTrace) {
  failureSnackBar(context,
      'Invalid or missing phone_num in ${file.name} row ${row.elementAt(0)!.rowIndex + 1}');
  Navigator.pop(context);
  breakLoop = true;
  return PhoneNumber();
});

问题补充 #

此前相同的Excel文件可正常解析手机号，但现在无法运行，即使手动指定isoCode仍会出现相同错误，恳请提供解决帮助！

内容的提问来源于stack exchange，提问作者lou_codes