* installing *source* package 'metacor' ...
** this is package 'metacor' version '0.1.0'
** using staged installation
** R
** byte-compile and prepare package for lazy loading
Error in loadNamespace(x) : there is no package called 'usethis'
Error: unable to load R code in package 'metacor'
Execution halted
ERROR: lazy loading failed for package 'metacor'
* removing 'd:/RCompile/CRANincoming/R-devel/lib/metacor'