Compile issue for RStan

Interfaces
53

Same error as before:

g++ -I"//icnas1.cc.ic.ac.uk/jc718/R/win-library/3.6/Rcpp/include/" test.cpp
Error: unexpected string constant in “g++ -I”//icnas1.cc.ic.ac.uk/jc718/R/win-library/3.6/Rcpp/include/“”

thanks!