'Xamarin.Forms.Label' 和 'System.Reflection.Emit.Label' 之间的模糊引用

Ambiguous reference between 'Xamarin.Forms.Label' and 'System.Reflection.Emit.Label'

我将在 Visual Studio 2015 年 Windows 开始我的第一个 Xamarin.Forms 应用程序。

我的启动项目是 firstApp.Droid。

MainActivity.csfirstApp.Droid 我有这个代码:

namespace firstApp.Droid
{
    [Activity (Label = "firstApp", Icon = "@drawable/icon", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsApplicationActivity
    {
        protected override void OnCreate (Bundle bundle)
        {
            base.OnCreate (bundle);

            global::Xamarin.Forms.Forms.Init (this, bundle);
            LoadApplication (new firstApp.App ());
        }
    }
}

App.cs中我有这个代码:

public App ()
    {
        // The root page of your application
        MainPage = new NavigationPage(new SensorPage());
    }

SensorPage.cs 中,我有这个自动生成的代码:

public class SensorPage : ContentPage
{
    public SensorPage ()
    {
        Content = new StackLayout {
            Children = {
                new Label { Text = "Hello SensorPage" } //line that causes the error
            }
        };
    }
}

当我尝试编译应用程序时,出现错误:

CS0104 'Label' is an ambiguous reference between 'Xamarin.Forms.Label' and 'System.Reflection.Emit.Label'

我应该怎么做才能解决这个问题?

要么从 SensorPage.cs 的顶部删除 using System.Reflection.Emit;,要么为标签使用显式命名空间:

Content = new StackLayout {
            Children = {
                new Xamarin.Forms.Label { Text = "Hello SensorPage" }
            }
        };