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我有一个Common包含log4net CustomAppender 的项目.我在所有其他项目中引用该项目并在其中配置log4net appender app.config.除了在尝试实例化Appender时失败的一个项目,一切都顺利进行.

输出显示以下错误:

System.TypeLoadException: Could not load type [Common.Appenders.MyCustomAppender].
Tried assembly [log4net, Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a]
and all loaded assemblies
at log4net.Util.SystemInfo.GetTypeFromString(Assembly relativeAssembly, String typeName, Boolean throwOnError, Boolean ignoreCase)
at log4net.Util.SystemInfo.GetTypeFromString(String typeName, Boolean throwOnError, Boolean ignoreCase)
at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement appenderElement)
log4net:ERROR Appender named [MyCustomAppender] not found.

所有项目的log4net配置都相同.app.config包含:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <log4net>
    <appender name="MyCustomAppender" type="Common.Appenders.MyCustomAppender">
      <file value="log.txt" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] …