Arduino: 1.8.15 (Windows 10), Board: "Arduino Uno"
In file included from C:\Users\91701\Documents\Arduino\sketch_aug28c\sketch_aug28c.ino:3:0:
C:\Program Files (x86)\Arduino\libraries\DFRobotDFPlayerMini-1.0.5/DFRobotDFPlayerMini.h:44:23: error: expected unqualified-id before numeric constant
#define DFPlayerError 6
^
C:\Users\91701\Documents\Arduino\sketch_aug28c\sketch_aug28c.ino:4:1: note: in expansion of macro 'DFPlayerError'
DFPlayerError mp3(8,9);
^~~~~
C:\Users\91701\Documents\Arduino\sketch_aug28c\sketch_aug28c.ino: In function 'void setup()':
sketch_aug28c:19:3: error: 'mp3' was not declared in this scope
mp3.begin(9600);
^~~
sketch_aug28c:22:19: error: 'MP3_LOOP_NONE' was not declared in this scope
mp3.setLoopMode(MP3_LOOP_NONE);
^~~~~
C:\Users\91701\Documents\Arduino\sketch_aug28c\sketch_aug28c.ino: In function 'void left()':
sketch_aug28c:42:6: error: 'mp3' was not declared in this scope
mp3.playFileByIndexNumber(2);
^~~
C:\Users\91701\Documents\Arduino\sketch_aug28c\sketch_aug28c.ino: In function 'void right()':
sketch_aug28c:57:5: error: 'mp3' was not declared in this scope
mp3.playFileByIndexNumber(3);
^~~
C:\Users\91701\Documents\Arduino\sketch_aug28c\sketch_aug28c.ino: In function 'void center()':
sketch_aug28c:72:5: error: 'mp3' was not declared in this scope
mp3.playFileByIndexNumber(1);
^~~
exit status 1
'mp3' was not declared in this scope
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