installation problem

[davidemorselli]

Hello,
I can't manage to install the package.. I get this:
Installing package into ‘/home/dmorsell/R/x86_64-pc-linux-gnu-library/4.3’
(as ‘lib’ is unspecified)

• installing source package ‘topicHelpers’ ...
  ** using staged installation
  ** R
  Error in parse(...) :
  /tmp/RtmpjLUl4f/R.INSTALL544593a688a/topicHelpers/R/make_td_thetas_df.R:17:1: unexpected input
  16: #' @importFrom rlang get_expr
  17: <<
  ^
  ERROR: unable to collate and parse R files for package ‘topicHelpers’