[Rprotobuf-yada] Error on load

[Dirk Eddelbuettel]

R> library(RProtoBuf)
Loading required package: Rcpp
Error in loadNamespace(package, c(which.lib.loc, lib.loc), keep.source =
keep.source) :
  in 'RProtoBuf' methods for export not found: clone
Error: package/namespace load failed for 'RProtoBuf'
R>

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Three out of two people have difficulties with fractions.