Error enabling custom search parameter

[Jerry123456]

Attempting to create a custom search parameter on the Practitioner in the FHIR store following the directions here.  

I submitted the post request to create the search parameter and it came back as 201 created.

{
    "resourceType": "SearchParameter",
    "url": "http://example.com/SearchParameter/practitioner-biography-active",
    "code": "biography-active",
    "name": "biography-active",
    "expression": "Practitioner.extension('https://example.com/fhir/StructureDefinition/practitioner-biography').extension('active').value.as(Boolean)",
    "base": ["Practitioner"],
    "type": "string",
    "description": "Search on the approved status of the biography.",
    "status": "active"
}

Attempting to enable the search parameter I get an error

{
    "error": {
        "code": 400,
        "message": "failed to process clause '\"Practitioner.extension('https://example.com/fhir/StructureDefinition/practitioner-biography').extension('active').value.as(Boolean)\"' from search parameter 431c2575-8ae6-4b33-a4ea-86d77a78e764",
        "status": "INVALID_ARGUMENT"
    }

Any thoughts on what's wrong here?

[cassandramae]

Hi @Jerry123456,

Welcome to Google Cloud Community!

This may happen if you're using different version for your Custom Search. With this, please try to use v1beta1 in both the curl commands and use type=token while creating the Search Parameter.

Hope this helps.