创建空白Xamarin.Forms应用程序时出错。 [英] Errors when creating blank Xamarin.Forms app.

问题描述

我在创建xamarin项目时遇到了麻烦。当我这样做时，Vs显示了很多错误。即使我仍然可以运行应用程序，我认为将它们放在一个空白项目中是不正常的。我试图修复vs并重新安装软件包，但没有任何改变。
有人能帮帮我吗？以下是完整的错误列表。

错误     CS0115    'MainActivity.OnCreate（Bundle）'：找不到合适的方法来覆盖     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs     15  
 有效

警告        检索项目的父项时出错：找不到与给定名称"Theme.AppCompat.Light.DarkActionBar"匹配的资源。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml  
  2    

警告        检索项目的父项时出错：找不到与给定名称"Theme.AppCompat.Light.Dialog"匹配的资源。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml  
  4    

警告        找不到与给定名称匹配的资源：attr'colorAccent'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml     3  
 

警告        找不到与给定名称匹配的资源：attr'colorAccent'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml     4  
 

警告        找不到与给定名称匹配的资源：attr'colorPrimary'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml     2  
 

警告        找不到与给定名称匹配的资源：attr'colorPrimaryDark'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml  
  2    

警告        找不到与给定名称匹配的资源：attr'windowActionBar'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml  
  2    

警告        找不到与给定名称匹配的资源：attr'windowActionModeOverlay'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml  
  4    

警告        找不到与给定名称匹配的资源：attr'windowNoTitle'。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml     2  
 

错误     CS0103    当前上下文中不存在名称"InitializeComponent"     App1.Android     C：\users\mihail\source\repos\App1\App1\App1\MainPage.xaml.cs     14  
 有效

错误     CS0103    当前上下文中不存在名称"LoadApplication"     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs     23  
 有效

错误     CS0103    当前上下文中不存在"TabLayoutResource"名称     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs     17  
 有效

错误     CS0103    当前上下文中不存在名称"ToolbarResource"     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs     18  
 有效

错误        找不到"ContentPage"类型。验证您是否缺少程序集引用，并且已构建所有引用的程序集。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1\MainPage.xaml  
  2    

错误        找不到"标签"类型。验证您是否缺少程序集引用，并且已构建所有引用的程序集。     App1.Android     C：\users\mihail\source\repos\App1\App1\App1\MainPage.xaml  
  7    

错误     CS0246    找不到类型或命名空间名称'ContentPage'（您是否缺少using指令或程序集引用？）     App1.Android     C：\users\mihail\source\repos\App1\App1\App1\MainPage.xaml.cs  
  10    有效

错误     CS0234    名称空间'Xamarin'中不存在类型或命名空间名称'Forms'（您是否缺少程序集引用？）     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs  
  13    有效

错误     CS0234    名称空间'Xamarin'中不存在类型或命名空间名称'Forms'（您是否缺少程序集引用？）     App1.Android     C：\users\mihail\source\repos\App1\App1\App1\MainPage.xaml.cs  
  6    有效

错误     CS0234    名称空间'Xamarin'中不存在类型或命名空间名称'Forms'（您是否缺少程序集引用？）     App1.Android     C：\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs  
  22    有效

解决方案

您可以参考：  https：//forums.xamarin.com/讨论/ 59017 /无资源发现 - 即百搭的给出的名称管理主题程序兼容性光

Hi, I have a trouble with creating xamarin project. When I do this, Vs shows a lot of errors. Even though I still can run the app, I don't think this is normal to have them in a blank project. I tried to repair vs and reinstall packages, but nothing changed. Can someone help me? Here's the full list of errors.

Error    CS0115    'MainActivity.OnCreate(Bundle)': no suitable method found to override    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs    15    Active
Warning        Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    2    
Warning        Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.Dialog'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    4    
Warning        No resource found that matches the given name: attr 'colorAccent'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    3    
Warning        No resource found that matches the given name: attr 'colorAccent'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    4    
Warning        No resource found that matches the given name: attr 'colorPrimary'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    2    
Warning        No resource found that matches the given name: attr 'colorPrimaryDark'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    2    
Warning        No resource found that matches the given name: attr 'windowActionBar'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    2    
Warning        No resource found that matches the given name: attr 'windowActionModeOverlay'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    4    
Warning        No resource found that matches the given name: attr 'windowNoTitle'.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\Resources\values\styles.xml    2    
Error    CS0103    The name 'InitializeComponent' does not exist in the current context    App1.Android    c:\users\mihail\source\repos\App1\App1\App1\MainPage.xaml.cs    14    Active
Error    CS0103    The name 'LoadApplication' does not exist in the current context    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs    23    Active
Error    CS0103    The name 'TabLayoutResource' does not exist in the current context    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs    17    Active
Error    CS0103    The name 'ToolbarResource' does not exist in the current context    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs    18    Active
Error        The type 'ContentPage' was not found. Verify that you are not missing an assembly reference and that all referenced assemblies have been built.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1\MainPage.xaml    2    
Error        The type 'Label' was not found. Verify that you are not missing an assembly reference and that all referenced assemblies have been built.    App1.Android    c:\users\mihail\source\repos\App1\App1\App1\MainPage.xaml    7    
Error    CS0246    The type or namespace name 'ContentPage' could not be found (are you missing a using directive or an assembly reference?)    App1.Android    c:\users\mihail\source\repos\App1\App1\App1\MainPage.xaml.cs    10    Active
Error    CS0234    The type or namespace name 'Forms' does not exist in the namespace 'Xamarin' (are you missing an assembly reference?)    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs    13    Active
Error    CS0234    The type or namespace name 'Forms' does not exist in the namespace 'Xamarin' (are you missing an assembly reference?)    App1.Android    c:\users\mihail\source\repos\App1\App1\App1\MainPage.xaml.cs    6    Active
Error    CS0234    The type or namespace name 'Forms' does not exist in the namespace 'Xamarin' (are you missing an assembly reference?)    App1.Android    c:\users\mihail\source\repos\App1\App1\App1.Android\MainActivity.cs    22    Active

解决方案

You could refer to this: https://forums.xamarin.com/discussion/59017/no-resource-found-that-matches-the-given-name-theme-appcompat-light

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