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我想使用 EnterpriseLibrary 5.0 dll 登录我的项目。为此，我已将这些 dll 添加到我的参考资料中：

Microsoft.Practices.EnterpriseLibrary.Common
Microsoft.Practices.EnterpriseLibrary.Data
Microsoft.Practices.EnterpriseLibrary.Logging
Microsoft.Practices.EnterpriseLibrary.Logging.Database

然后我写这个：

using Microsoft.Practices.EnterpriseLibrary.Data; 
using Microsoft.Practices.EnterpriseLibrary.Common.Configuration; 
using Microsoft.Practices.EnterpriseLibrary.Logging;

然后我写道：

LogEntry logEntry = new LogEntry();
logEntry.Message = "Message";
Logger.Write(logEntry);

但是当我的代码执行时，我在最后一行得到了这个异常：

尝试获取 LogWriter 类型的实例时发生激活错误，键“”

有这个 InnerException：

依赖项解析失败，type = \"Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter\", name = \"(none)\"。\r\n发生异常时：调用构造函数 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners .FlatFileTraceListener(System.String fileName, System.String header, System.String footer, Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter 格式化程序)。\r\n异常是: IOException - 设备未准备好。\r\n \r\n---------------------------------------------- -\r\n发生异常时，容器为：\r\n\r\n 正在解决 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterImpl,LogWriter。默认 （映射自 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter，（无））\r\n 解析构造函数 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterImpl(Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder structureHolder) 的参数“structureHolder” , Microsoft.Practices.EnterpriseLibrary.Logging.Instrumentation.ILoggingInstrumentationProvider instrumentationProvider, Microsoft.Practices.EnterpriseLibrary.Logging.ILoggingUpdateCoordinator updateCoordinator)\r\n 正在解决 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder,LogWriterStructureHolder。默认 （从 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder 映射，（无））\r\n 解析构造函数 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder 的参数 \"traceSources\"(System.Collections.Generic.IEnumerable 1[[Microsoft.Practices.EnterpriseLibrary.Logging.Filters.ILogFilter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]] filters, System.Collections.Generic.IEnumerable1[[ System.String，mscorlib，版本=4.0.0.0，Culture=neutral，PublicKeyToken=b77a5c561934e089]] traceSourceNames，System.Collections.Generic.IEnumerable1[[Microsoft.Practices.EnterpriseLibrary.Logging.LogSource, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]] traceSources, Microsoft.Practices.EnterpriseLibrary.Logging.LogSource allEventsTraceSource, Microsoft.Practices.EnterpriseLibrary.Logging.LogSource notProcessedTraceSource, Microsoft.Practices.EnterpriseLibrary.Logging.LogSource errorsTraceSource, System.String defaultCategory, System.Boolean tracingEnabled, System.Boolean logWarningsWhenNoCategoriesMatch, System.Boolean revertImpersonation)\r\n Resolving Microsoft.Practices.EnterpriseLibrary.Logging.LogSource,Trace\r\n
Resolving parameter \"traceListeners\" of constructor Microsoft.Practices.EnterpriseLibrary.Logging.LogSource(System.String name, System.Collections.Generic.IEnumerable1[[System.Diagnostics.TraceListener, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] traceListeners, System.Diagnostics.SourceLevels 级别, System.Boolean autoFlush, Microsoft.Practices.EnterpriseLibrary.Logging.Instrumentation。 ILoggingInstrumentationProvider instrumentationProvider)\r\n 正在解析 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.ReconfigurableTraceListenerWrapper、Flat FileTrace 侦听器（映射自 System.Diagnostics.TraceListener、Flat FileTrace 侦听器）\r\n 解析构造函数 Microsoft 的参数“wrappedTraceListener” .Practices.EnterpriseLibrary.Logging.TraceListeners.ReconfigurableTraceListenerWrapper（System.Diagnostics.TraceListener WrappedTraceListener，Microsoft.Practices.EnterpriseLibrary.Logging。ILoggingUpdateCoordinator 协调器）\r\n 正在解决 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener、Flat FileTrace 侦听器‌实现（映射自 System.Diagnostics.TraceListener、Flat FileTrace 侦听器‌实现）\r\n 调用构造函数 Microsoft.Practices.EnterpriseLibrary.Logging。 TraceListeners.FlatFileTraceListener（System.String 文件名，System.String 标头，System.String 页脚，Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter 格式化程序）EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener（System.String 文件名，System.String 标头，System.String 页脚，Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter 格式化程序）EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener（System.String 文件名，System.String 标头，System.String 页脚，Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter 格式化程序）

它有这个 InnerException：

设备未准备好。

我该如何解决这个错误？

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2 回答 2

1

阅读以下文章：如何配置和使用 Microsoft Enterprise Library 5 进行日志记录

于 2013-04-24T13:27:07.393 回答
1

此错误来自 app.config 文件。我会使用有一些错误的相同 app.config 文件。当我使用使用 EntLib 应用程序创建的 app.config 时，我的错误解决了。

于 2013-05-18T08:18:01.567 回答