INFO : 2020-02-07 23:40:41Z - $SourceTag release variable does not exist, tagging source (commit 32c4b13cb9fde3ff117776ae237f45e97d2275b5) in https://github.com/Inedo/upack.git
INFO : 2020-02-07 23:40:44Z - Tag 'https://github.com/Inedo/upack.git' as 'upack-2.3.0.6'...
INFO : 2020-02-07 23:40:47Z - Tag complete.
INFO : 2020-02-07 23:40:47Z - Variable set.
INFO : 2020-02-07 23:40:47Z - Deploying upack artifact as zip file to working directory...
INFO : 2020-02-07 23:40:47Z - Artifact deployed.
INFO : 2020-02-07 23:40:47Z - Transferring C:\ProgramData\BuildMaster\Temp\Service\_E21260\upack.zip to downloads/proget/upack.zip (320 KB)...
INFO : 2020-02-07 23:40:48Z - Renaming C:\ProgramData\BuildMaster\Temp\Service\_E21260\upack.zip to C:\ProgramData\BuildMaster\Temp\Service\_E21260\upack2.3.0.zip...
INFO : 2020-02-07 23:40:48Z - File renamed.
INFO : 2020-02-07 23:40:48Z - Transferring C:\ProgramData\BuildMaster\Temp\Service\_E21260\upack2.3.0.zip to downloads/proget/upack2.3.0.zip (320 KB)...
INFO : 2020-02-07 23:40:48Z - Deploying upack artifact to working directory...
INFO : 2020-02-07 23:40:48Z - Artifact deployed.
ERROR: 2020-02-07 23:40:48Z - Unhandled exception: System.Exception: {"message":"Not Found","documentation_url":"https://developer.github.com/v3/repos/releases/#create-a-release"} ---> System.Net.WebException: The remote server returned an error: (404) Not Found.
   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Inedo.Extensions.GitHub.Clients.GitHubClient.<InvokeAsync>d__39.MoveNext() in C:\ProgramData\BuildMaster\Temp\Service\_E18973\Src\Git\GitHub.InedoExtension\Clients\GitHubClient.cs:line 329
   --- End of inner exception stack trace ---
   at Inedo.Extensions.GitHub.Clients.GitHubClient.<InvokeAsync>d__39.MoveNext() in C:\ProgramData\BuildMaster\Temp\Service\_E18973\Src\Git\GitHub.InedoExtension\Clients\GitHubClient.cs:line 357
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Inedo.Extensions.GitHub.Clients.GitHubClient.<EnsureReleaseAsync>d__32.MoveNext() in C:\ProgramData\BuildMaster\Temp\Service\_E18973\Src\Git\GitHub.InedoExtension\Clients\GitHubClient.cs:line 228
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Inedo.Extensions.GitHub.Operations.Releases.GitHubEnsureReleaseOperation.<ConfigureAsync>d__1.MoveNext() in C:\ProgramData\BuildMaster\Temp\Service\_E18973\Src\Git\GitHub.InedoExtension\Operations\Releases\GitHubEnsureReleaseOperation.cs:line 53
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Inedo.BuildMaster.Windows.ServiceApplication.Executions.PlanExecuter.BuildMasterExecuter.<ExecuteActionAsync>d__49.MoveNext()