Run programes questions

General
1

when i run programes with rstan in R4.0.4 encounted：

Error in open.connection(con, open = mode) :
Timeout was reached: [github.com] Operation timed out after 10000 milliseconds with 0 out of 0 bytes received
except: Warning messages:
In system(paste(CXX, ARGS), ignore.stdout = TRUE, ignore.stderr = TRUE) :
‘C:/Rtools/mingw_/bin/g++’ not found

how to fix this？

2

When you first load rstan, run rstan_options(javascript=FALSE). This stops RStan from downloading a component of the next RStan version to test whether a specified model will still run.

For example:

library(rstan)

rstan_options(javascript=FALSE)
3

that works, but now i meet another problem that is R Session Aborted(R encountered a fatal error, the sesion was terminated) when the programes runned many times( because i want the average result).

4

R will crash if you repeatedly assign to the same output object, try assigning the result of each run to a different object

5

What do you mean by this? How are you running your code?