Rcpp报告错误：DLL不在软件包“ Rcpp”的C符号名称“ sourceCppContext”中

Question

I am trying Rcpp 0.10.0 on Mac OS 10.8.2, and use the example here about estimating \\pi. However, when I run the following code in R:

sourceCpp("piSugar.cpp")

an error message says:

Error in .Call("sourceCppContext", PACKAGE = "Rcpp", file, code, .Platform) : C symbol name "sourceCppContext" not in DLL for package "Rcpp"

Did I miss something? I double checked that the piSuger.cpp file is in current directory. Thanks!

Answer 1

I suspect you are calling an older Rcpp version. Maybe you have several in your .libPaths() ? Or maybe you didn't restart your session?

It all works here -- and piBySimulation.r is the example from my blog post from an hour or two ago which you are trying to replicate here:

edd@max:~/svn/rcpp/pkg/Rcpp/inst/examples/Misc$ Rscript piBySimulation.r
        test replications elapsed relative
2 piSugar(N)          100   5.639    1.000
1     piR(N)          100  11.147    1.977
edd@max:~/svn/rcpp/pkg/Rcpp/inst/examples/Misc$