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[SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
System.Security.CodeAccessPermission.Demand() +58
System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) +644
System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +66
System.Configuration.Internal.InternalConfigHost.StaticOpenStreamForRead(String streamName) +85
System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName, Boolean assertPermissions) +124
System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName) +10
System.Configuration.Internal.DelegatingConfigHost.OpenStreamForRead(String streamName) +13
System.Configuration.UpdateConfigHost.OpenStreamForRead(String streamName) +46
System.Configuration.BaseConfigurationRecord.InitConfigFromFile() +293