YAML error after knitting

[startz]

All of a sudden I am getting the following error on knitting.

Error in .rs.parsePackageDependencies(contents, extension) : 
  object 'partition_yaml_front_matter' not found

Doesn't seem to have prevented anything from being knitted. Any ideas?

My yaml is

---
title: Econ 145 String Fiddling
subtitle: 
author: Professor Dick Startz
institute: UCSB
output:
  beamer_presentation:
      includes:
         in_header: footer_template.tex
params:
  cutout: FALSE
---

[HanOostdijk]

Maybe related to https://github.com/rstudio/rstudio/issues/11552 ?

[startz]

Wow. That fixed it. Thanks!