我是Angledart的新手，正在从事邮寄工作，但出现错误消息：
dart_sdk.js：100398 例外：不支持的操作： Platform._localHostname STACKTRACE：dart：sdk_internal
获取本地主机名包：mailer2 / src / smtp / smtp_options.dart 4:25
新包装：mailer2 / src / smtp / helper_options.dart 12:24
新 软件包：DigitalHrSummit / src / components / homepagecomponent / homepage_component.dart 68:21提交 软件包：DigitalHrSummit / src / components / homepagecomponent / homepage_component.template.dart 1025：8 [_handle_click_287_0] 封装：angular / src / core / linker / app_view.dart 602：29
src__core__linker__app_view_utils.appViewUtils.eventManager.zone.runGuarded.dart.fn 封装：angular / src / core / zone / ng_zone.dart 134：16
parent.run.dart.fn dart：sdk_internal
运行package：angular / src / core / zone / ng_zone.dart 131：18
[_run] dart：sdk_internal
runGuarded软件包：angular / src / core / zone / ng_zone.dart 302：22
runGuarded软件包：angular / src / core / linker / app_view.dart 601：37
事件
基本上，我只是可以找到here的示例代码。我在选项变量中有我的Gmail用户名和密码。
我的.dart组件（homepage_component.dart）中有示例代码
...
import 'package:mailer2/mailer.dart';
...
class HomeComponent(){
void onSubmit(Map<String, dynamic> contactUsInfo) {
//Gmail account used to send email
var options = new GmailSmtpOptions()
..username = 'my-gmail-account'
..password = 'my-gmail-password';
// Create our email transport.
var emailTransport = new SmtpTransport(options);
// Create our mail/envelope.
var envelope = new Envelope()
..from = 'sender-email-here'
..recipients.add('recievers-mail-here')
//..bccRecipients.add('hidden@recipient.com')
..subject = 'Testing the Dart Mailer library'
//..attachments.add(new Attachment(file: new File('path/to/file')))
..text = 'This is a cool email message. Whats up?'
..html = '<h1>Test</h1><p>Hey!</p>';
// Email it.
emailTransport.send(envelope)
.then((envelope) => print('Email sent!'))
.catchError((e) => print('Error occurred: $e'));
}
}
请帮助我。谢谢。