Jira .NET SDK: issue.Savechange() throw unknown exception

Question

The .NET program I used to create Jira issues automatically failed to save the new created issue recently. The tool was working perfectly until a few days ago, so I guess the problem might be on the Jira server side. See the attached pics for exception details. What causes this exception? thanks.

The problem is resolved after removing following code, weird.
//new_issue.Priority = "None";

I tried following ways to set priority, but they both triggers that exception?

var new_issue = jira.CreateIssue("THINPRO");
new_issue.Components.Add("Security");
new_issue.Type = "Bug";
new_issue.Summary = "test;
new_issue.Description = "test;

/ set priority based on CVSS score use priority id
//1 = Highest 2 = High 3 = Medium 4 = Low 5 = Lowest 6 = (not used) 7 = None
if (score <= 0.0)
new_issue.Priority = "7";
else if (score >= 7.0)
new_issue.Priority = "2" ;
else if (score <= 4.0)
new_issue.Priority = "4";
else
new_issue.Priority = "3";

new_issue.SaveChanges();

 

// set priority based on CVSS score use priority name
if (score <= 0.0)
new_issue.Priority = "None";
else if (score >= 7.0)
new_issue.Priority = "High";
else if (score <= 4.0)
new_issue.Priority = "Low";
else
new_issue.Priority = "Medium";
new_issue.SaveChanges();





Unhandled Exception: System.AggregateException: One or more errors occurred. ---> System.Security.Authentication.AuthenticationException: Response Content: 
   at Atlassian.Jira.Remote.JiraRestClient.GetValidJsonFromResponse(IRestRequest request, IRestResponse response)
   at Atlassian.Jira.Remote.JiraRestClient.<ExecuteRequestAsync>d__11.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Atlassian.Jira.Remote.JiraRestClient.<ExecuteRequestAsync>d__10`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Atlassian.Jira.Remote.IssuePriorityService.<GetPrioritiesAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Atlassian.Jira.IssuePriority.<GetEntitiesAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Atlassian.Jira.JiraNamedEntity.<LoadIdAndNameAsync>d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Atlassian.Jira.Issue.<ToRemoteAsync>d__158.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Atlassian.Jira.Issue.SaveChanges()

Answer 1

The value None is probably an invalid value.

In most (and default) Jira configuration, you cannot empty the Priority field. It's the system field and it must have a value from predefined list (usually something like Blocker, Critical, Major, Minor, Trivial).