Hello.
I get errors when I run below command and could not figure out what is the cause.
It would be a great help if any experienced person could let me know. Thanks!

xtset c_id year
xtpmg d(var1 lnTRR VAS VAM VAA servinter manuinter agriinter), lr(L.var1 lnTRR VAS VAM VAA servinter manuinter agriinter) ec(ec) mpg