Question

昨天我问了一个关于为什么我的程序没有创建数据库的问题，因为本教程http://www.entityframeworktutorial.net/code-first/code-first-conventions.aspx表明应该这样做。我修复了一些问题，但结果又抛出了另一个异常：类型为＃System; TypeInitializationException＆＃39;的未处理异常发生在EntityFramework.dll

中

其他信息：Typeinitialiseringsfunktionen for＆＃39; System.Data.Entity.Internal.AppConfig＆＃39;抛出异常。

因此，如果有人知道为什么会抛出此异常，请帮助:)

整个例外详情：

function PrintElem(elem) {
  var mywindow = window.open('', 'PRINT', 'height=400,width=600');

  mywindow.document.write('<html><head><title>' + document.title + '</title>');

  mywindow.document.write('</head><body >');
  mywindow.document.write('<h1>' + document.title + '</h1>');
  mywindow.document.write(document.getElementById(elem).innerHTML);
  mywindow.document.write('</body></html>');

  mywindow.document.close(); // necessary for IE >= 10
  mywindow.focus(); // necessary for IE >= 10*/

  mywindow.print();
  mywindow.close();

  return true;

}

代码：

System.TypeInitializationException was unhandled   HResult=-2146233036 Message=Typeinitialiseringsfunktionen for 'System.Data.Entity.Internal.AppConfig' udløste en undtagelse.   Source=EntityFramework   TypeName=System.Data.Entity.Internal.AppConfig   StackTrace:
       ved System.Data.Entity.Internal.AppConfig.get_DefaultInstance()
       ved System.Data.Entity.Internal.LazyInternalConnection..ctor(DbContext context, String nameOrConnectionString)
       ved System.Data.Entity.DbContext..ctor(String nameOrConnectionString)
       ved ShopEntity.ShopContext..ctor() i C:\Users\Anders\documents\visual studio 2015\Projects\ShopEntity\ShopEntity\ShopContext.cs:linje 12
       ved ShopEntity.Program.Main() i C:\Users\Anders\documents\visual studio 2015\Projects\ShopEntity\ShopEntity\Program.cs:linje 17
       ved System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       ved System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       ved Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       ved System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       ved System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       ved System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       ved System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       ved System.Threading.ThreadHelper.ThreadStart()   InnerException: 
       BareMessage='connectionStrings'-element, der ikke er genkendt.
       Filename=C:\Users\Anders\documents\visual studio 2015\Projects\ShopEntity\ShopEntity\bin\Debug\ShopEntity.vshost.exe.Config
       HResult=-2146232062
       Line=15
       Message='connectionStrings'-element, der ikke er genkendt. (C:\Users\Anders\documents\visual studio 2015\Projects\ShopEntity\ShopEntity\bin\Debug\ShopEntity.vshost.exe.Config line 15)
       Source=System.Configuration
       StackTrace:
            ved System.Configuration.BaseConfigurationRecord.EvaluateOne(String[] keys, SectionInput input, Boolean isTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult)
            ved System.Configuration.BaseConfigurationRecord.Evaluate(FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult, Boolean getLkg, Boolean getRuntimeObject, Object& result, Object& resultRuntimeObject)
            ved System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
            ved System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
            ved System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
            ved System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
            ved System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
            ved System.Configuration.ConfigurationManager.GetSection(String sectionName)
            ved System.Data.Entity.Internal.AppConfig..ctor()
            ved System.Data.Entity.Internal.AppConfig..cctor()
       InnerException:

System.TypeInitializationException出现在EntityFramework.dll中

0 个答案: