Question

我有一个包含多个项目的解决方案。 DBContext文件和Models位于ClassLibrary项目中。这个项目有EF 6.1.3，它运行在.NET 4.5.2上。模型和DBContext文件采用不同的文件结构，我的意思是模型在Project / Data / Model中，而DBContext在Data文件夹中。此项目似乎已启用到现有数据库的迁移。开发团队过去只是通过构建项目来重新创建数据库。它还有：

AutomaticMigrationsEnabled = true;

我正在尝试正确使用迁移，并尝试按照以下方式查看PackageManagerConsole是否正确反应。

Enable-Migrations
Add-Migration InitialCreate –IgnoreChanges

两者都导致以下错误：

Exception calling "SetData" with "2" argument(s): "Type 'Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProject' in assembly  'Microsoft.VisualStudio.ProjectSystem.VS.Implementation, Version=14.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' is not marked as serializable." At C:\Users\Temp\.nuget\packages\EntityFramework\6.1.3\tools\EntityFramework.psm1:718 char:5
+     $domain.SetData('project', $project)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : SerializationException   Exception calling "SetData" with "2" argument(s): "Type 'Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProject' in assembly  'Microsoft.VisualStudio.ProjectSystem.VS.Implementation, Version=14.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' is not marked as serializable." At C:\Users\Temp\.nuget\packages\EntityFramework\6.1.3\tools\EntityFramework.psm1:719 char:5
+     $domain.SetData('contextProject', $contextProject)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : SerializationException   Exception calling "SetData" with "2" argument(s): "Type 'Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProject' in assembly  'Microsoft.VisualStudio.ProjectSystem.VS.Implementation, Version=14.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' is not marked as serializable." At C:\Users\Temp\.nuget\packages\EntityFramework\6.1.3\tools\EntityFramework.psm1:720 char:5
+     $domain.SetData('startUpProject', $startUpProject)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : SerializationException   System.NullReferenceException: Object reference not set to an instance of an object.    at System.Data.Entity.Migrations.Extensions.ProjectExtensions.GetPropertyValue[T](Project project, String propertyName)    at System.Data.Entity.Migrations.MigrationsDomainCommand.GetFacade(String configurationTypeName, Boolean useContextWorkingDirectory)    at System.Data.Entity.Migrations.EnableMigrationsCommand.FindContextToEnable(String contextTypeName)    at System.Data.Entity.Migrations.EnableMigrationsCommand.<>c__DisplayClass2.<.ctor>b__0() at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command) Object reference not set to an instance of an object.

请您查看并告诉我导致错误的原因。我也尝试将Startup项目设置为解决方案中的其他项目。

Answer 1

我的类库（.Net标准）有相同的问题。我解决了创建新的类库（.Net Framework）并粘贴所有实体和模型的问题。

我希望它能有所帮助。

最好的问候，触手

EF 6 - 使用2个参数调用SetData的错误异常

1 个答案: