I am in a class and the instructor has provided the following code and attached data.

```
library(brms)
fit_press <- brm(rt ~ 1,
data= df_spacebar,
family = gaussian(),
prior = c(
[df_spacebar.csv|attachment](upload://xHuLcXdeRWcfp7HqiKlfXMRAbJk.csv) (5.1 KB)
prior(uniform(0, 60000), class = Intercept),
prior(uniform(0, 2000, class = sigma)
),
chains = 4,
iter = 2000,
warmup = 1000
))
```

When I run the code, I get an error: “Cannot add ‘brmsprior’ objects to the prior.”

I am the only one in the class who gets the error.

**My reprex**

fit_press ← brm(rt ~ 1,

data= df_spacebar,

family = gaussian(),

prior = c(

prior(uniform(0, 60000), class = Intercept),

prior(uniform(0, 2000, class = sigma)

),

chains = 4,

iter = 2000,

warmup = 1000

))

#> Error in brm(rt ~ 1, data = df_spacebar, family = gaussian(), prior = c(prior(uniform(0, : could not find function “brm”

If I remove the priors, i.e. “prior = c(…),” The code runs.

Any ideas about what is happening? Why is adding priors “hiding” brm function? Or, is it something else?

Thank you.