``` cpp11::cpp_source("xyz.cpp") > boo() #> [1] 10 > cpp11::cpp_source("xyz.cpp") > boo() #> Error in .Call("_xyz_2_boo", PACKAGE = "xyz_2") : "_xyz_2_boo" not available for .Call() for package "xyz_2" ``` This is likely due to our changes to the temp file names. We will have to re-evaluate how we are handling temporary file names. Restarting the R session removes this error.