我想使用EnterpriseLibrary 5.0 dll登录我的项目。 为此,我已将这些dll添加到我的参考文献中:
Microsoft.Practices.EnterpriseLibrary.Common
Microsoft.Practices.EnterpriseLibrary.Data
Microsoft.Practices.EnterpriseLibrary.Logging
Microsoft.Practices.EnterpriseLibrary.Logging.Database
然后我写下这个:
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例外:
尝试获取类型实例时发生激活错误 LogWriter,键“”
具有此InnerException:
依赖项的解析失败,type = \“Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter \”,name = \“(无)\”。\ r \ n发生异常时:调用构造函数 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener(System.String fileName,System.String标题,System.String页脚, Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter formatter)。\ r \ n \ nException是:IOException - 设备不是 准备好了。\ r \ n \ r \ n ---------------------------------------- ------- \ r \ NAT 例外的时间,容器是:\ r \ n \ r \ n解析 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterImpl,日志写。默认 (从Microsoft.Practices.EnterpriseLibrary.Logging.LogWriter映射, (无))\ r \ n解析构造函数的参数\“structureHolder \” Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterImpl(Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder structureHolder, Microsoft.Practices.EnterpriseLibrary.Logging.Instrumentation.ILoggingInstrumentationProvider instrumentationProvider, Microsoft.Practices.EnterpriseLibrary.Logging.ILoggingUpdateCoordinator updateCoordinator)\ r \ n解析 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder,LogWriterStructureHolder。默认 (映射自 Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder, (无))\ r \ n解析构造函数的参数\“traceSources \” Microsoft.Practices.EnterpriseLibrary.Logging.LogWriterStructureHolder(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.IEnumerable
1 [[System.String,mscorlib, Version = 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
1 [[System.Diagnostics.TraceListener, 系统,版本= 4.0.0.0,文化=中立, PublicKeyToken = b77a5c561934e089]] traceListeners, System.Diagnostics.SourceLevels级别,System.Boolean autoFlush, Microsoft.Practices.EnterpriseLibrary.Logging.Instrumentation.ILoggingInstrumentationProvider instrumentationProvider)\ r \ n解析 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.ReconfigurableTraceListenerWrapper,平 FileTrace Listener(从System.Diagnostics.TraceListener映射,Flat FileTrace Listener)\ r \ n解析参数 构造函数的“wrappedTraceListener” Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.ReconfigurableTraceListenerWrapper(System.Diagnostics.TraceListener wrappedTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging.ILoggingUpdateCoordinator 协调员)\ r \ n解决 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener,平 FileTrace Listenerimplementation(映射自 System.Diagnostics.TraceListener,Flat FileTrace Listenerimplementation)\ r \ n调用构造函数 Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener(System.String fileName,System.String标题,System.String页脚, Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.ILogFormatter 格式化器)
Resolving parameter \"traceListeners\" of constructor Microsoft.Practices.EnterpriseLibrary.Logging.LogSource(System.String name, System.Collections.Generic.IEnumerable
它有这个InnerException:
设备尚未就绪。
如何解决此错误?
答案 0 :(得分:1)
答案 1 :(得分:1)
此错误来自app.config文件。 我使用了一个有一些错误的app.config文件。 当我使用使用EntLib应用程序创建的app.config时,我的错误已解决。