sketch.ino: In function 'void setup()':
sketch.ino:8:7: error: 'rtc' was not declared in this scope
 if (! rtc.begin())
       ^~~
sketch.ino:8:7: note: suggested alternative: 'rts'
 if (! rtc.begin())
       ^~~
       rts
sketch.ino:14:7: error: 'rtc' was not declared in this scope
 if (! rtc.isrunning*()){
       ^~~
sketch.ino:14:7: note: suggested alternative: 'rts'
 if (! rtc.isrunning*()){
       ^~~
       rts
sketch.ino:14:22: error: expected primary-expression before ')' token
 if (! rtc.isrunning*()){
                      ^
In file included from /arduino/hardware/avr/1.8.6/cores/arduino/Arduino.h:28:0,
                 from sketch.ino.cpp:1:
sketch.ino:16:25: error: '__DATA__' was not declared in this scope
   rtc.adjust(DateTime(F(__DATA__),F(__TIME__)))
                         ^
sketch.ino:16:23: note: in expansion of macro 'F'
   rtc.adjust(DateTime(F(__DATA__),F(__TIME__)))
                       ^
sketch.ino:16:25: note: suggested alternative: '__DATE__'
   rtc.adjust(DateTime(F(__DATA__),F(__TIME__)))
                         ^
sketch.ino:16:23: note: in expansion of macro 'F'
   rtc.adjust(DateTime(F(__DATA__),F(__TIME__)))
                       ^

Error during build: exit status 1