sketch_aug31a:13: error: 'LiquidCrystal_I2C' does not name a type
sketch_aug31a.ino: In function 'void setup()':
sketch_aug31a:25: error: 'lcd' was not declared in this scope
sketch_aug31a.ino: In function 'void loop()':
sketch_aug31a:53: error: 'lcd' was not declared in this scope