[support] Taxonomy in views reference

I have Name, Last Name, Phone number fields in a taxonomy Vocabulary named Contacts.

I have a Views Reference named Contacts which displays Name and Lastname fields. All works as expected.

When I set up a Contacts field in my events table form set to Node Reference I want to select the Reference View but get error message from 'Views- Nodes That Can Be Referenced' = No eligible view was found.

The idea is to provide a drop down list in Events form that provides first and last name from the taxonomy view.

I'm completely stuck on how to do this

Are there any Views experts who can help me please? thanks Roger