C# 单红隼重复环境变量

我运行k kestrel时出现以下错误：

System.ArgumentException: An element with the same key already exists in the dictionary.
  at System.Collections.Generic.Dictionary`2[TKey,TValue].Add (System.Collections.Generic.TKey key, System.Collections.Generic.TValue value) [0x00000] in <filename unknown>:0 
  at System.Linq.Enumerable.ToDictionary[DictionaryEntry,String,String] (IEnumerable`1 source, System.Func`2 keySelector, System.Func`2 elementSelector, IEqualityComparer`1 comparer) [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.ConfigurationModel.EnvironmentVariablesConfigurationSource.Load (IDictionary envVariables) [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.ConfigurationModel.EnvironmentVariablesConfigurationSource.Load () [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.ConfigurationModel.Configuration.Add (IConfigurationSource configurationSource) [0x00000] in <filename unknown>:0 
  at Microsoft.Framework.ConfigurationModel.ConfigurationExtensions.AddEnvironmentVariables (IConfigurationSourceContainer configuration) [0x00000] in <filename unknown>:0 
  at Microsoft.AspNet.Hosting.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0 
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 

它指向一个重复的环境变量，但我似乎找不到它

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有人知道复制品是什么吗？它可能与Linux有关，因为我必须重新安装…

在开始保存和取消设置复制变量之前，复制了运行级密钥来修复此问题。在这种情况下：

SAVE_TMP_VAR=$runlevel
unset runlevel

#run your programm

export runlevel=$SAVE_TMP_VAR

程序完成后，还原变量

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这是

您可以分享解决方案吗？