Convert.FromBase64String(_privateKey); Throes error.

[AnderT]

Hi Guys,

I generated an API Key and pasted it into the code along with the Public API Key. What am I doing wrong?

System.AggregateException
HResult=0x80131500
Message=One or more errors occurred.
Source=mscorlib
StackTrace:
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at BtcMarketsApiClient.Sample.Program.Main(String[] args) in C:\Users\ander\source\repos\api-v3-client-dotnet\BtcMarketsApiClient\BtcMarketsApiClient.Sample\Program.cs:line 17

This exception was originally thrown at this call stack:
[External Code]
BtcMarketsApiClient.Sample.ApiClient.SignMessage(string) in ApiClient.cs
BtcMarketsApiClient.Sample.ApiClient.GenerateHeaders(System.Net.Http.HttpClient, string, string, string) in ApiClient.cs
BtcMarketsApiClient.Sample.ApiClient.Get(string, string) in ApiClient.cs
[External Code]
BtcMarketsApiClient.Sample.Orders.GetOrdersAsync() in Orders.cs

Inner Exception 1:
FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

Cheers,

Ander