Probleme de compilation avec touchsreen TFT 2.8

Bonjour tout le monde, j'ai un écran tactile TFT2.8, Arduino MEGA 2560. Lorsque je compile pour afficher une série de tests graphiques (lien site anglais : LCD Test | 2.8" TFT Touch Shield | Adafruit Learning System lien site français partie 'Test LCD' Ecran tactile 2.8" TFT — MCHobby - Wiki ) je reçois des messages d'erreurs :

In file included from graphicstest.pde:6:
C:\Program Files (x86)\Arduino\libraries\TFTLCD/Adafruit_TFTLCD.h:21: error: expected class-name before '{' token
graphicstest.pde: In function 'long unsigned int testText()':
graphicstest:153: error: 'class Adafruit_TFTLCD' has no member named 'setCursor'
graphicstest:154: error: 'class Adafruit_TFTLCD' has no member named 'setTextColor'
graphicstest:154: error: 'class Adafruit_TFTLCD' has no member named 'setTextSize'
graphicstest:155: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:156: error: 'class Adafruit_TFTLCD' has no member named 'setTextColor'
graphicstest:156: error: 'class Adafruit_TFTLCD' has no member named 'setTextSize'
graphicstest:157: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:158: error: 'class Adafruit_TFTLCD' has no member named 'setTextColor'
graphicstest:158: error: 'class Adafruit_TFTLCD' has no member named 'setTextSize'
graphicstest:159: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:160: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:161: error: 'class Adafruit_TFTLCD' has no member named 'setTextColor'
graphicstest:162: error: 'class Adafruit_TFTLCD' has no member named 'setTextSize'
graphicstest:163: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:164: error: 'class Adafruit_TFTLCD' has no member named 'setTextSize'
graphicstest:165: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:166: error: 'class Adafruit_TFTLCD' has no member named 'setTextSize'
graphicstest:167: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:168: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:169: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:170: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:171: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:172: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest:173: error: 'class Adafruit_TFTLCD' has no member named 'println'
graphicstest.pde: In function 'long unsigned int testLines(uint16_t)':
graphicstest:180: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:181: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:188: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:190: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:199: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:201: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:210: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:212: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:221: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest:223: error: 'class Adafruit_TFTLCD' has no member named 'drawLine'
graphicstest.pde: In function 'long unsigned int testFastLines(uint16_t, uint16_t)':
graphicstest:230: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:230: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest.pde: In function 'long unsigned int testRects(uint16_t)':
graphicstest:243: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:244: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:247: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:247: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:247: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:247: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:251: error: 'class Adafruit_TFTLCD' has no member named 'drawRect'
graphicstest.pde: In function 'long unsigned int testFilledRects(uint16_t, uint16_t)':
graphicstest:260: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:261: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:264: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:264: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:264: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:264: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:271: error: 'class Adafruit_TFTLCD' has no member named 'drawRect'
graphicstest.pde: In function 'long unsigned int testFilledCircles(uint8_t, uint16_t)':
graphicstest:279: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:279: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:285: error: 'class Adafruit_TFTLCD' has no member named 'fillCircle'
graphicstest.pde: In function 'long unsigned int testCircles(uint8_t, uint16_t)':
graphicstest:295: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:296: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:303: error: 'class Adafruit_TFTLCD' has no member named 'drawCircle'
graphicstest.pde: In function 'long unsigned int testTriangles()':
graphicstest:312: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:313: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:319: error: 'class Adafruit_TFTLCD' has no member named 'drawTriangle'
graphicstest.pde: In function 'long unsigned int testFilledTriangles()':
graphicstest:331: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:332: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:338: error: 'class Adafruit_TFTLCD' has no member named 'fillTriangle'
graphicstest:341: error: 'class Adafruit_TFTLCD' has no member named 'drawTriangle'
graphicstest.pde: In function 'long unsigned int testRoundRects()':
graphicstest:351: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:352: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:355: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:355: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:355: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:355: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:359: error: 'class Adafruit_TFTLCD' has no member named 'drawRoundRect'
graphicstest.pde: In function 'long unsigned int testFilledRoundRects()':
graphicstest:368: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:369: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:373: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:373: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:373: error: 'class Adafruit_TFTLCD' has no member named 'width'
graphicstest:373: error: 'class Adafruit_TFTLCD' has no member named 'height'
graphicstest:375: error: 'class Adafruit_TFTLCD' has no member named 'fillRoundRect'

j'ai vraiment besoin d'aide ..

Tu as dû oublier d'installer la librairie GFX. C'est indiqué sur le site d'adafruit au début du lien que tu donnes.