R - pbkrtest, “Error : object ‘sigma’ is not exported by 'namespace:stats'” -

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i following error message when trying load pbkrtest:

error : object ‘sigma’ not exported 'namespace:stats'
in addition: warning messages: 1: package ‘pbkrtest’ built under r version 3.3.1 2: replacing previous import ‘stats::sigma’ when loading ‘pbkrtest’

error: package or namespace load failed ‘pbkrtest’

any suggestions?

what trying this:

update.packages(ask = false, repos = 'http://cran.rstudio.org')

it works me.


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