【发布时间】:2012-01-10 16:55:51
【问题描述】:
在我的 ASP.NET 应用程序中有 MyAssembly.CustomIdentity 类和 .NET 运行时 tries to serialize that class。在序列化过程中,它会抛出 FileNotFoundException 抱怨它无法加载 MyAssembly。
[SerializationException: Unable to find assembly 'MyAssembly, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.]
System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) +9464367
System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) +345
System.AppDomain.get_Id() +0
<CrtImplementationDetails>.DoCallBackInDefaultDomain(IntPtr function, Void* cookie) +151
<CrtImplementationDetails>.DefaultDomain.Initialize() +30
<CrtImplementationDetails>.LanguageSupport.InitializeDefaultAppDomain(LanguageSupport* ) +41
<CrtImplementationDetails>.LanguageSupport._Initialize(LanguageSupport* ) +391
<CrtImplementationDetails>.LanguageSupport.Initialize(LanguageSupport* ) +65
[ModuleLoadException: The C++ module failed to load while attempting to initialize the default appdomain.]
<CrtImplementationDetails>.ThrowModuleLoadException(String errorMessage, Exception innerException) +61
<CrtImplementationDetails>.LanguageSupport.Initialize(LanguageSupport* ) +113
.cctor() +46
[TypeInitializationException: The type initializer for '<Module>' threw an exception.]
Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.InitializeEnvironment() +0
Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment..cctor() +809
[TypeInitializationException: The type initializer for 'Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment' threw an exception.]
Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.get_IsAvailable() +17
SampleWebApp.Default.Page_Load(Object sender, EventArgs e) in C:\Temp\AzureAdvancedRolesSource\Ex2-StartupTasks\CS\Begin\SampleWebApp\Default.aspx.cs:22
我进行了搜索,看起来处理 AppDomain.AssemblyResolve 事件应该会有所帮助。所以我实现了处理那个事件:
public partial class Default : System.Web.UI.Page
{
static Assembly MyResolveEventHandler(object sender, ResolveEventArgs args)
{
return typeof(MyAssembly.CustomIdentity).Assembly;
}
protected void Page_Load(object sender, EventArgs e)
{
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.AssemblyResolve +=
new ResolveEventHandler(MyResolveEventHandler);
// this code throws `FileNotFoundException`
// during a serialization attempt
bool isAvailable =
Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.IsAvailable;
}
}
但是我的处理程序没有被调用,并且在序列化尝试期间我仍然遇到相同的异常。我该如何解决这个问题 - 如何让序列化程序找到我的程序集?
【问题讨论】:
-
异常信息是什么?
-
对于初学者,您不应该盲目地退回您的程序集;您需要检查
args以查看它的要求...但是:现在异常消息是什么? -
@SLaks, @Marc Gravell:: 我添加了调用堆栈,我猜它提供了最详细的消息。
-
@Marc Gravell:是的,我想看看
args来推断要检查的内容,现在结果发现甚至没有调用处理程序。