In file included from C:\Users\ANURAG\Documents\Arduino\libraries\Sim800l-master\examples\sendSms\sendSms.ino:32:0:

C:\Users\ANURAG\Documents\Arduino\libraries\Sim800l-master/Sim800l.h:33:28: fatal error: SoftwareSerial.h: No such file or directory

compilation terminated.

exit status 1
Error compiling for board Arduino/Genuino Uno.