Can not run stan code with some errors

Interfaces
1

I got error messages like below.

In system(paste(CXX, ARGS), ignore.stdout = TRUE, ignore.stderr = TRUE) :
  '-E' not found

Few months ago it works very well and clearly, but stan does not work anymore.

I searched some posts and try several commands like

file.edit("~/.R/Makevars.win") # erase -march=native
file.edit("~/.R/Makevars") # it is blank.....Do I need to fill up with some commands?

install.packages(
  "https://artifacts.r-hub.io/StanHeaders_2.21.0-6.tar.gz-d74e0af7c9e06cba7d975cd8d3dbcf87/StanHeaders_2.21.0-6.zip",
  repos = NULL, type = "win.binary")
install.packages(
  "https://artifacts.r-hub.io/rstan_2.21.2.tar.gz-639222303bb62625e2349320b5adb986/rstan_2.21.2.zip",
  repos = NULL, type = "win.binary")

but error remains…

Error in withr::set_makevars(new, path, state, assignment = assignment) : 
  Multiple results for CXX14FLAGS found, something is wrong.FALSE
Warnings: 
In system(paste(CXX, ARGS), ignore.stdout = TRUE, ignore.stderr = TRUE) :
  'C:/RBUILD~1/4.0/usr/mingw_/bin/g++' not found

Here is my code.

library(tidyverse)
library(rstan)
library(ggmcmc)

set.seed(20191030)
N <- 10^3
X <- rnorm(N, 0, 5)

ex1 <- '
  data{
    int<lower = 0> N;
    real X[N];
    real theta0;
    real<lower = 0> tau0;
    real<lower = 0> alpha;
    real<lower = 0> beta;
  }
  parameters{
    real theta;
    real<lower = 0> sigma2;
  }
  model{
    for(n in 1:N){
      X[n] ~ normal(theta, sqrt(sigma2));
    }
    theta ~ normal(theta0, tau0);
    sigma2 ~ inv_gamma(alpha, beta);
  }
'

fit <- stan(model_code = ex1, 
            data = list(N = length(X), X = X, 'theta0' = mean(X), 
                        'tau0' = sd(X), 'alpha' = 5, 'beta' = 5), 
            iter = 5000, warmup = 500)

My laptop OS and version of software.

Operating System: Windows 10
Interface Version: Stan: 2.21.0 / R: 4.0.3
Compiler/Toolkit: Rstudio

2

That warning/error around -E is completely safe and fine to ignore.

The error:

Error in withr::set_makevars(new, path, state, assignment = assignment) : 
  Multiple results for CXX14FLAGS found, something is wrong.FALSE

Is because you have multiple CXX14FLAGS = statements in your Makevars.win file. You can reset this to a safe, working, configuration by running:

writeLines("CXX14FLAGS += -mtune=native -O3 -mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2",
           con = "~/.R/Makevars.win")

However, the withr package is causing some issues with Makevars files on Windows, so you’ll need to downgrade to a working version:

devtools::install_version("withr", version="2.2.0")
1 Like
3

Thanks! My program is working!

1 Like