Quantile regression error: missing default family? Wrong error message?

Hi,
thanks so much for making brms available.
I thought it might help developers to note this small issue.

I’m experimenting with quantile regressions. I get the “Error: Invalid fixed parameters: ‘quantile’” using this call

fit.brm<-brm(bf(last_volxr~FXIbroad.L, quantile=0.9),
data=df.BIS[df.BIS$cc%in%who_int,])

Yet by amending the call copied from the help the estimation works

fit7 <- brm(bf(last_volxr~FXIbroad.L+(1+FXIbroad.L|cc), quantile = 0.25), data = df.BIS[df.BIS$cc%in%who_int,],
            family = asym_laplace())

It seems that the error really points to “family” not being specified.

Cheers
Gianni