hugo-academic fails

[larssk]

> blogdown::install_theme('gcushen/hugo-academic')
trying URL 'https://github.com/gcushen/hugo-academic/archive/master.zip'
Content type 'application/zip' length 1147058 bytes (1.1 MB)
==================================================
downloaded 1.1 MB

Warning message:
In file.rename(zipdir, gsub(sprintf("-%s$", branch), "", zipdir)) :
  cannot rename file './hugo-academic-master' to './hugo-academic', reason 'File exists'
>  blogdown::serve_site()
Started building sites ...
ERROR 2017/08/10 10:41:50 Error while rendering "page": template: theme/_default/single.html:10:7: executing "theme/_default/single.html" at <partial "article_met...>: error calling partial: template: theme/partials/article_metadata.html:7:24: executing "theme/partials/article_metadata.html" at <$.Site.Params.date_f...>: invalid value; expected string
Serving the directory /home/slars/public_html/wasbsite4 at http://127.0.0.1:4321

[yihui]

Please reinstall blogdown from this repo and follow instructions in the error message when you run into problems.

BTW, I'm not sure if you have read the second paragraph of this page: https://bookdown.org/yihui/blogdown/other-themes.html