Cannot recognize data

[kelvinchunmanchan]

I try to run the augsynth code on
Basque country using data from Abadie and Gardeazabal (2003)

library(pacman)
library(SCtools)
library("augsynth")
p_load(Synth)
dat<- readRDS("C:/Users/cxc220008/Desktop/basque.RDS")

dat$treated<- ifelse(dat$regionno == 17 & dat$year>1969, 1,0)
datsubset <- subset(dat, dat$regionno>1)
datsubset <- data.frame(datsubset)
asyn <- augsynth(datsubset$gdpcap ~ datsubset$treated, datsubset$regionno, datsubset$year, datsubset)

I create a treated variable, and a subdataset removing Spain from the data, and I try to run augsynth

I keep getting the following error and the dataset seems cannot be recognized. May I know what do I need to change in order to make the code run properly? Thanks

Multiple outcomes and one treatment time found. Running augsynth_multiout.
Error in select():
! Can't select columns that don't exist.
✖ Column datsubset doesn't exist.
Run rlang::last_trace() to see where the error occurred.