There is no type initializer in Swift----One answer is to use static, it is the same as class final.

“Unlike stored instance properties, you must always give stored type properties a default value. This is because the type itself does not have an initializer that can assign a value to a stored type property at initialization time.” Excerpt From: App…

使用Spire组件抛出异常The type initializer for 'spr857' threw an exception

使用Spire组件抛出异常The type initializer for 'spr857' threw an exception 我使用免费的Spire.Xls组件尝试去转换Excel文档到PDF文档,在执行下面第二行代码,也就是做加载文档这步时,抛出了异常“The type initializer for 'spr857' threw an exception” Workbook workbook = new Workbook(); workbook.LoadFromFile("D:\\sa…

C#中异常：“The type initializer to throw an exception（类型初始值设定项引发异常）”的简单分析与解决方法

对于C#中异常:“The type initializer to throw an exception(类型初始值设定项引发异常)”的简单分析,目前本人分析两种情况,如下: 情况一: 借鉴麒麟.NET的类型初始值设定项引发异常文章!!!写的很详细,大家可以看一看! 其实麒麟.NET的这篇文章主要讲解分析了静态成员的方面,总的说就是:类型初始化或访问类型的静态成员时,都会对类中的其他静态成员进行初始化,如果有静态构造函数的话,一并执行静态构造函数.在这过程中所引发的异常我就直接借鉴麒麟.NET的例…

System.Security.SecurityException The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception

[15/08/19 00:03:10] [DataManager-7292-ERROR] System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: The type initializer for 'System.Data.Entity.Internal.AppConf…

System.TypeInitializationException: The type initializer for 'Mono.Unix.Native.Stdlib' threw an exception.

08-31 17:02:03: ### DEBUG ##########################System.TypeInitializationException: The type initializer for 'Mono.Unix.Native.Stdlib' threw an exception. ---> System.DllNotFoundException: /usr/lib/libMonoPosixHelper.so at (wrapper managed-to-na…

the type initializer for '' threw an exception

the type initializer for '' threw an exception 问题:程序启动时初始化主窗口类时,弹出该错误.调查:查看类的构造函数是否会有异常抛出.解决:去掉类的构造函数中可能出现的异常. ////////////////////// 环境:windows 2003 x64,Oracle 10g x64,odp.net(正确安装),.net framework 4 问题:.net应用程序通过Oracle.DataAccess.dll访问64位的Oracle服务器,…

debian The type initializer for 'System.Drawing.KnownColors' threw an exception

Change the "System.Drawing" reference of "CoreCompat.System.Drawing"if you throw The type initializer for 'System.Drawing.KnownColors' threw an exception to do:apt-get install libgdiplus …

ASP.Net Core "The type initializer for 'Gdip' threw an exception"

ASP.NET Core项目部署在Linux下可能会出现GDI错误 The type initializer for 'Gdip' threw an exception 解决方案:创建 libdl 的软链接 # /lib/x86_64-linux-gnu/libdl* sudo ln -s /lib/x86_64-linux-gnu/libdl.so.2 /lib/x86_64-linux-gnu/libdl.so或sudo ln -s /lib/x86_64-linux-gnu/libdl-2…

The type initializer for System.Data.SqlClient.SqlConnection threw an exception

The type initializer for System.Data.SqlClient.SqlConnection threw an exception net framwork啥原因 xp电脑…

System.TypeInitializationException: The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. ---> Oracle.DataAccess.Client.OracleException: 提供程序与此版本的 Oracle 客户机不兼容”

.net应用程序通过Oracle.DataAccess.dll访问64位的Oracle服务器,在连接时出现以下异常:“System.TypeInitializationException: The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. ---> Oracle.DataAccess.Client.OracleException: 提供程序与此版本的 Oracle 客户…

System.TypeInitializationException: 'The type initializer for 'MySql.Data.MySqlClient.Replication.ReplicationManager' threw an exception.'

下午在调试的时候报错数据库连接就报错我就很纳闷后面用原来的代码写发现还是报错 System.TypeInitializationException: 'The type initializer for 'MySql.Data.MySqlClient.Replication.ReplicationManager' threw an exception.' 应该是出在Mysql包上的问题但是我发现更换版本也不行我就尝试着打开mysql到自己数据库看看回来之后调试又成功了,之后问题又出现过1次但…

skiasharp在阿里云Windows server 2016上部署时提示The type initializer for 'SkiaSharp.SKAbstractManagedStream' threw an exception. 错误

应用环境及问题描述: Windows Server 2016,.Net core 2.1, Skiasharp作为跨平台的图像处理组件在生成缩略图时出错,本地测试都是正常的,部署到服务器无法生成缩略图. 用的时阿里云(aliyun)的Windows Server 2016. IIS部署,除了安装 .net core 2.1,没有安装其他任何东西. 首先排除了权限问题,因为图片保存是不存在问题. 然后记录下错误日志:: The type initializer for 'SkiaSharp…

System.Drawing Linux Centos7 The type initializer for 'Gdip' threw an exception

System.Drawing 在linux使用时提示异常 The type initializer for 'Gdip' threw an exception 解决方案: yum install autoconf automake libtool yum install freetype-devel fontconfig libXft-devel yum install libjpeg-turbo-devel libpng-devel giflib-devel libtiff-devel lib…

Breaking Down Type Erasure in Swift

Type Erasure Pattern We can use the type erasure pattern to combine both generic type parameters and associated types to satisfy both the compiler and our flexibility goals. We will need to create three discrete types in order to satisfy these constr…

.net 调用 Matlab生成dll出现的问题(The type initializer for 'MathWorks.MATLAB.NET.Utility.MWMCR' threw an exception.)

https://cn.mathworks.com/matlabcentral/answers/278399-i-get-an-error-saying-the-type-initializer-for-mathworks-matlab-net-utility-mwmcr-threw-an-except 这篇文章帮忙解决了问题记录一下备忘: Hi Nug, Ensure that you have the MCR version corresponding to MATLAB 2012b ins…

the type initializer for 'system.drawingcore.gdiplus' threw an exception

Centos 7 yum install libgdiplus-devel reboot之后生效 apt install libgdiplus cp /usr/lib/libgdiplus.so ~/.nuget/packages/qrcoder/1.3.1/lib/netstandard2.0…

.net core获取数据库连接抛出The type initializer to throw an exception

原文:https://www.cnblogs.com/pudefu/p/7580722.html 在.NET Framework框架时代我们的应用配置内容一般都是写在Web.config或者App.config文件中,读取这两个配置文件只需要引用System.Configuration程序集,分别用 System.Configuration.ConfigurationManager.AppSettings["SystemName"];//读取appSettings配置 System.C…

netcore程序部署 ubuntu 16.0.4 报错 The type initializer for 'System.Net.Http.CurlHandler'的解决方案

最近业务扩展需要把netcore程序部署到ubuntu 16.0.4上,因为代码里面用到了HttpClient 请求. 部署ubuntu后一直报错参考地址:https://github.com/dotnet/corefx/issues/35838 当有人明确需要curlhttphandler时,解决方法是安装旧的libcurl3 apt install libcurl3…

.net Core 在 CentOS7下,报The type initializer for 'Gdip' threw an exception.异常

.net Core允许在 Centos7 上,使用 System.Draw.Common类库时,报以下错误: "Class":"System.TypeInitializationException", "Message":"Unable to load DLL 'libgdiplus': The specified module could not be found.", "StackTrace":&quo…

swift中文文档- 类型转换

未翻译完待续(英语烂,求斧正) Type Casting 类型转换 Type casting is a way to check the type of an instance, and/or to treat that instance as if it is a different superclass or subclass from somewhere else in its own class hierarchy. 类型转换是检测实例所属类型的一种方法,和/或去对待实例好像它是一个…

Welcome-to-Swift-18类型转换（Type Casting）

类型转换是一种检查类实例的方式,并且哦或者也是让实例作为它的父类或者子类的一种方式. Type casting is a way to check the type of an instance, and/or to treat that instance as if it is a different superclass or subclass from somewhere else in its own class hierarchy. 类型转换在Swift中使用is 和 as操作符实现.…

"Swift"编程语言

来自英文文档.百度翻译以及自己没过4级的渣渣英语功底,为了自己以后看起来方便 About Swift 关于"海燕" IMPORTANT 重要 This is a preliminary document for an API or technology in development. Apple is supplying this information to help you plan for the adoption of the technologies and programm…

Swift安装

Server1 .Update sudo apt-get update sudo apt-get upgrade . sudo apt-get install bridge-utils .IP 3.1 sudo vi /etc/network/interfaces ---------------------------------------------- auto lo iface lo inet loopback auto eth0 iface eth0 inet static addres…