Error: No common type for `Default` <character> and `Default` <double>.

[personalitystudies]

I'm running into trouble creating the simulation parameters. When I try to create param_docs, I get:

Error: No common type for `Default` <character> and `Default` <double>.

If I run rlang::last_error() it reports:

<error/vctrs_error_incompatible_type>
No common type for `Default` <character> and `Default` <double>.
Backtrace:
  1. tibble::tribble(...)
  8. vctrs:::vec_ptype2.character.default(...)
  9. vctrs::vec_default_ptype2(x, y, x_arg = x_arg, y_arg = y_arg)
 10. vctrs::stop_incompatible_type(x, y, x_arg = x_arg, y_arg = y_arg)
 11. vctrs:::stop_incompatible(...)
 12. vctrs:::stop_vctrs(...)

I see that some of the ~Default entries in param_docs are numbers, some are characters, and some are logical arguments? Would that create an error of this type, or am I doing something wrong?

Thanks for any suggestions.