Tag: LocalizedPerfCounter

C#

The key LocalizedPerfCounter does not exist

When you are using .NET 2.0 or .NET 3.5 and you are trying to make a web request with WebRequest class you may see the following internal error if you have Common Language Runtime Exceptions enabled during debugging in Visual Studio: Exception thrown: ‘System.InvalidOperationException’ in System.dll Additional information: The key ‘LocalizedPerfCounter’ does not exist in …