Workflow Help - Creating a Reminder Email Workflow Follow

I am currently working on creating a wokflow that sends a Reminder Email once a specific date is set in a custom date field.  I am getting the following error when I attempt to save the workflow:

Parsing or evaluation exception:  Error while loading script for rule reminderemail: Rule's 'search' is undefined

Below is the script I have written, but I am unsure what is causing the issue.  Any help is appreciated.

Thanks!

var entities = require('@jetbrains/youtrack-scripting-api/entities');
var workflow = require('@jetbrains/youtrack-scripting-api/workflow');

exports.rule = entities.Issue.onSchedule({
title: 'ReminderEmail',
cron: '0 0 8 * * MON-FRI',
guard: function(ctx) {
return ctx.issue.fields.ReminderDate == Date.now() && ctx.issue.fields.Assignee;
},
action: function(ctx) {
var getLinkToIssue = function(i) {
return '<a href="' + i.url + '">' + i.id + '</a> ' + '<a href="' + i.url + '">' + i.summary + '</a>';
};

var issue = ctx.issue;
var subject = workflow.i18n('Follow-up Reminder on {0}', issue.id);
var body = workflow.i18n('Please review the comments section for notes on the reason for follow-up to assist in resolving {0}', getLinkToIssue(issue));

ctx.Assignee.notify(subject, body, true);
},
requirements: {
State: {
type: entities.State.fieldType,
ReminderDate: {
name: 'Reminder Date'
}
},
Assignee: {
type: entities.User.fieldType
}
}
});