Chains finish unexpectedly in new install of CmdStanR

Thanks for the quick reply.

I ran the example model and it finished successfully:

starting worker pid=336573 on localhost:11478 at 12:34:34.099
[1] 4
Running MCMC with 4 chains, at most 48 in parallel...

Chain 1 Iteration:    1 / 2000 [  0%]  (Warmup) 
Chain 1 Iteration:  100 / 2000 [  5%]  (Warmup) 
Chain 1 Iteration:  200 / 2000 [ 10%]  (Warmup) 
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Chain 1 Iteration:  700 / 2000 [ 35%]  (Warmup) 
Chain 1 Iteration:  800 / 2000 [ 40%]  (Warmup) 
Chain 1 Iteration:  900 / 2000 [ 45%]  (Warmup) 
Chain 1 Iteration: 1000 / 2000 [ 50%]  (Warmup) 
Chain 1 Iteration: 1001 / 2000 [ 50%]  (Sampling) 
Chain 1 Iteration: 1100 / 2000 [ 55%]  (Sampling) 
Chain 1 Iteration: 1200 / 2000 [ 60%]  (Sampling) 
Chain 1 Iteration: 1300 / 2000 [ 65%]  (Sampling) 
Chain 1 Iteration: 1400 / 2000 [ 70%]  (Sampling) 
Chain 1 Iteration: 1500 / 2000 [ 75%]  (Sampling) 
Chain 1 Iteration: 1600 / 2000 [ 80%]  (Sampling) 
Chain 1 Iteration: 1700 / 2000 [ 85%]  (Sampling) 
Chain 1 Iteration: 1800 / 2000 [ 90%]  (Sampling) 
Chain 1 Iteration: 1900 / 2000 [ 95%]  (Sampling) 
Chain 1 Iteration: 2000 / 2000 [100%]  (Sampling) 
Chain 2 Iteration:    1 / 2000 [  0%]  (Warmup) 
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Chain 3 Iteration:    1 / 2000 [  0%]  (Warmup) 
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Chain 3 Iteration: 1000 / 2000 [ 50%]  (Warmup) 
Chain 3 Iteration: 1001 / 2000 [ 50%]  (Sampling) 
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Chain 4 Iteration:    1 / 2000 [  0%]  (Warmup) 
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Chain 4 Iteration:  900 / 2000 [ 45%]  (Warmup) 
Chain 4 Iteration: 1000 / 2000 [ 50%]  (Warmup) 
Chain 4 Iteration: 1001 / 2000 [ 50%]  (Sampling) 
Chain 4 Iteration: 1100 / 2000 [ 55%]  (Sampling) 
Chain 4 Iteration: 1200 / 2000 [ 60%]  (Sampling) 
Chain 4 Iteration: 1300 / 2000 [ 65%]  (Sampling) 
Chain 4 Iteration: 1400 / 2000 [ 70%]  (Sampling) 
Chain 4 Iteration: 1500 / 2000 [ 75%]  (Sampling) 
Chain 4 Iteration: 1600 / 2000 [ 80%]  (Sampling) 
Chain 4 Iteration: 1700 / 2000 [ 85%]  (Sampling) 
Chain 4 Iteration: 1800 / 2000 [ 90%]  (Sampling) 
Chain 4 Iteration: 1900 / 2000 [ 95%]  (Sampling) 
Chain 4 Iteration: 2000 / 2000 [100%]  (Sampling) 
Chain 1 finished in 0.1 seconds.
Chain 2 finished in 0.1 seconds.
Chain 3 finished in 0.1 seconds.
Chain 4 finished in 0.1 seconds.

All 4 chains finished successfully.
Mean chain execution time: 0.1 seconds.
Total execution time: 0.5 seconds.

   variable   mean median   sd  mad     q5    q95 rhat ess_bulk ess_tail
 lp__       -65.97 -65.65 1.46 1.23 -68.80 -64.29 1.00     2112     2751
 alpha        0.38   0.38 0.22 0.22   0.03   0.73 1.00     4231     3068
 beta[1]     -0.67  -0.66 0.25 0.25  -1.08  -0.26 1.00     4380     2711
 beta[2]     -0.27  -0.27 0.22 0.22  -0.64   0.09 1.00     3819     2875
 beta[3]      0.68   0.67 0.27 0.27   0.25   1.14 1.00     3975     3173
 log_lik[1]  -0.51  -0.51 0.10 0.10  -0.69  -0.37 1.00     4178     3274
 log_lik[2]  -0.40  -0.38 0.15 0.14  -0.68  -0.20 1.00     4617     3387
 log_lik[3]  -0.50  -0.46 0.22 0.20  -0.89  -0.21 1.00     4110     3021
 log_lik[4]  -0.45  -0.43 0.15 0.14  -0.72  -0.24 1.00     3726     3085
 log_lik[5]  -1.19  -1.17 0.29 0.28  -1.68  -0.75 1.00     4578     2913

 # showing 10 of 105 rows (change via 'max_rows' argument or 'cmdstanr_max_rows' option)
Error while shutting down parallel: unable to terminate some child processes

If it is something related with my model, how can I make cmdstan print the correct error message?

The same Stan model runs locally without errors.