Stuck with getting cmdstanr to work (Win 10)

This here…

When I try to fit…

> data_list <- list(N = 10, y = c(0,1,0,0,0,0,0,0,0,1))
> 
> fit <- mod$sample(
+     data = data_list,
+     seed = 123,
+     chains = 4,
+     parallel_chains = 4,
+     refresh = 500 # print update every 500 iters
+ )
Running MCMC with 4 parallel chains...

Warning: Chain 1 finished unexpectedly!

Warning: Chain 2 finished unexpectedly!

Warning: Chain 3 finished unexpectedly!

Warning: Chain 4 finished unexpectedly!

Warning: Use read_cmdstan_csv() to read the results of the failed chains.
Warning messages:
1: All chains finished unexpectedly! Use the $output(chain_id) method for more information.
 
2: No chains finished successfully. Unable to retrieve the fit.