Persistent ghost parser error in Stan model

Modeling
,
1

I updated Rstudio and suddenly a model that ran with no issue before is throwing non-sensical parser errors. I have tried running other models that have also previously ran and they are all throwing the same parser error:
"Error in stanc(file = file, model_code = model_code, model_name = model_name, :
0

Syntax error in ‘string’, line 53, column 4 to column 5, parsing error:

Expected end of file after end of generated quantities block."

See code chunk below where line 53 is “for(i in 1:N){”:

generated quantities {
vector[N] nuY;
for(i in 1:N){
nuY[i] = bernoulli_rng(inv_logit((beta + u[2, year[i]]) * fl[i] + u[1, year[i]] + alpha));
}
}

I have tried reverting to a previous version of Rstudio but the error is persistent. On some models the error shows up on a different line number where there is absolutely no code.

2

Solved the error. It’s weird because before today the above code was perfectly acceptable to rstan. What rstan didn’t like was nesting inv_logit() inside bernoulli_rng() . Historically I have used bernoulli_rng(inv_logit()) instead of bernoulli_logit_rng() because Rstudio doesn’t seem to recognize the latter as a statistical distribution and fails to make the text blue in colour. The crazy part is that this throws a syntax error for a different line of code than where the error was, so it was super difficult to figure out what was wrong.