Jira export - Unexpected migration error. [System.InvalidCastException]

[smorrisonk]

Describe the problem

I getting an error when trying to export issues from Jira;

Unexpected migration error. [System.InvalidCastException] System.InvalidCastException: Cannot cast Newtonsoft.Json.Linq.JObject to Newtonsoft.Json.Linq.JToken.

From my research it could have to do with my local json-file failing to parse(?) but I need help on how to solve the issue.

To Reproduce

The command I'm running (on Mackbook, using Wine to run the file) is "wine jira-export.exe -u myUerEmail -p myJiraToken --url https://jiraWorkspace.atlassian.net --config config-basic.json --force"

Tool version jira-azuredevops-migrator-3.0.426

Attachments

Please attach the following files: config-basic.json error-message.txt

[Alexander-Hjelm]

The exception is raised inside the getter for EpicParent, on JiraItem.cs:

https://github.com/solidify/jira-azuredevops-migrator/blob/c52b270468e7e7f285f4ec5046a7719d392b4720/src/WorkItemMigrator/JiraExport/JiraItem.cs#L596-L605

This in turn calls the ExValue extension method on a JObject, when ExValue is only defined for the type JToken:

https://github.com/solidify/jira-azuredevops-migrator/blob/c52b270468e7e7f285f4ec5046a7719d392b4720/src/WorkItemMigrator/Migration.Common/JsonExtensions.cs#L9-L23

Do you have any previous experience of getting the JiraExporter to work on mac? We do not officially support MacOS yet, and I would recommend running the CLI in a Windows VM instead.

[jbparker]

Windows user here running into the same exception:

[System.InvalidCastException] System.InvalidCastException: Cannot cast Newtonsoft.Json.Linq.JObject to Newtonsoft.Json.Linq.JToken.
   at Newtonsoft.Json.Linq.Extensions.Convert[T,U](T token)
   at Newtonsoft.Json.Linq.Extensions.Value[T,U](IEnumerable`1 value)
   at Newtonsoft.Json.Linq.Extensions.Value[U](IEnumerable`1 value)
   at Migration.Common.JsonExtensions.ExValue[T](JToken token, String path)
   at JiraExport.JiraItem.get_EpicParent()
   at JiraExport.JiraProvider.<EnumerateIssues>d__30.MoveNext()
   at JiraExport.JiraCommandLine.ExecuteMigration(CommandOption user, CommandOption password, CommandOption token, CommandOption url, CommandOption configFile, Boolean forceFresh, CommandOption continueOnCritical):
   at Newtonsoft.Json.Linq.Extensions.Convert[T,U](T token)
   at Newtonsoft.Json.Linq.Extensions.Value[T,U](IEnumerable`1 value)
   at Newtonsoft.Json.Linq.Extensions.Value[U](IEnumerable`1 value)
   at Migration.Common.JsonExtensions.ExValue[T](JToken token, String path)
   at JiraExport.JiraItem.get_EpicParent()
   at JiraExport.JiraProvider.<EnumerateIssues>d__30.MoveNext()
   at JiraExport.JiraCommandLine.ExecuteMigration(CommandOption user, CommandOption password, CommandOption token, CommandOption url, CommandOption configFile, Boolean forceFresh, CommandOption continueOnCritical)

[jbparker]

Looks like it is related to this: Upcoming changes: 'epic-link' replaced with 'parent'

Can see a demo of the new complex object parent here: .NET fiddle

That said, there is usually another custom field in the payload that represents the old epic-link field that can be used for instead of the parent field.

[Alexander-Hjelm]

@jbparker @smorrisonk Ok, my bad! :)

Do you have any more details on how to create/modify a Jira issue in order to reproduce this error message? Does it always happen when you add an epic link to an issue?

Any issue histories if available would be helpful!

[github-actions[bot]]

This issue is stale because it has been open for 25 days with no activity.

[github-actions[bot]]

This issue was closed because it has been inactive for 5 days since being marked as stale.