Getting error while creating an issue

[Manideep Sadhu]

I have two custom fields Linked Fix version list and Linked project List as drop downs.

Linked Fix version list depends on project selected from Linked project list, I am able to get the versions in Linked Version List Custom Field but while creating the Issue I am getting the following error.

Invalid value '14930' passed for customfield 'Linked Fix Version List'. Allowed values are: , -1

My Code for Script Runner

import com.atlassian.jira.project.Project;
import com.atlassian.jira.project.version.Version;
def selver = getFieldByName("Linked Fix Version List");
def project = getFieldByName("Linked Project List").getValue() as Project;

Collection<Version> versions = new ArrayList<Version>()
if(project){
for(Version version :project.getVersions()){
if(version.isReleased()){
continue
}else{
versions.add(version)
}
}
}
selver.setLabel('Linked Fix Version List1')
selver.setFieldOptions(versions)

  Help me in resolving this Issue

Thanks in Advance