Dear Team,
the SAS I used is provided by my university Fudan University. when I run the code below, there is a warning says that "ERROR: The SAS/ETS product with which ARIMA is associated is either not licensed for your system or the product license has expired. Please contact your SAS installation representative." But my classmates never meet such a problem, can I ask how can I repair my software?
proc arima data=sas.sp500;
identify var=per_up_down ;
run;