* installing *source* package ‘pmtc’ ...
** using staged installation
** R
** data
*** moving datasets to lazyload DB
** byte-compile and prepare package for lazy loading
Error in eval(exprs[i], envir) : object 'Authors' not found
Error: unable to load R code in package ‘pmtc’
Execution halted
ERROR: lazy loading failed for package ‘pmtc’
* removing ‘/srv/hornik/tmp/CRAN/pmtc.Rcheck/pmtc’