CannotMakeMoreVisible : Visibility of member 'System.Diagnostics.Tracing.EventListener.EventSourceIndex(System.Diagnostics.Tracing.EventSource)' is 'Family' in the implementation but 'Public' in the contract.
MembersMustExist : Member 'System.Diagnostics.Tracing.EventSource.add_EventCommandExecuted(System.EventHandler<System.Diagnostics.Tracing.EventCommandEventArgs>)' does not exist in the implementation but it does exist in the contract.
MembersMustExist : Member 'System.Diagnostics.Tracing.EventSource.remove_EventCommandExecuted(System.EventHandler<System.Diagnostics.Tracing.EventCommandEventArgs>)' does not exist in the implementation but it does exist in the contract.