Error creating service desk project

[ayerkovich]

Jira Software 7.13.1

JIRA Service Desk 3.16.1

Problem: When creating a new JSD proyect error "hmm... we couldn't create your project due to an unknown error" appears.

Log details:

Uncaught exception thrown by REST service: An error occurred while notifying that a project was created

java.lang.RuntimeException: An error occurred while notifying that a project was created
 at com.atlassian.jira.bc.project.DefaultProjectService.notifyHandlersOfProjectCreated(DefaultProjectService.java:395)
2019-02-02 16:56:34,788 http-nio-8080-exec-19 ERROR ayerkovich 1016x83x1 1x01w3v 190.192.47.143,104.154.200.238 /rest/project-templates/1.0/templates [c.s.j.spi.container.ContainerResponse] Exception mapper com.atlassian.plugins.rest.common.error.jersey.ThrowableExceptionMapper@35dce0f9 for Throwable java.lang.RuntimeException: An error occurred while notifying that a project was created threw a RuntimeException when attempting to obtain the response
2019-02-02 16:56:34,792 http-nio-8080-exec-19 ERROR ayerkovich 1016x83x1 1x01w3v 190.192.47.143,104.154.200.238 /rest/project-templates/1.0/templates [c.s.j.spi.container.ContainerResponse] Mapped exception to response: 500 (Internal Server Error)
javax.ws.rs.WebApplicationException: java.text.ParseException: String, es-419, is not a valid language tag
Caused by: java.text.ParseException: String, es-419, is not a valid language tag

  Already tried this workaround

[Alex Koxaras -Relational-]

Hi @ayerkovich 

Please take a look at this KB article https://confluence.atlassian.com/jirakb/create-project-fails-with-unknown-error-in-jira-server-818580338.html