Problem with weather-station-v2 about esp8266-projects HOT 3 OPEN

weather-station-v2:43: error: 'drawFrame1' was not declared in this scope
 void (*frameCallbacks[3])(int x, int y) = {drawFrame1, drawFrame2, drawFrame3};
                                            ^
weather-station-v2:43: error: 'drawFrame2' was not declared in this scope
 void (*frameCallbacks[3])(int x, int y) = {drawFrame1, drawFrame2, drawFrame3};
                                                        ^
weather-station-v2:43: error: 'drawFrame3' was not declared in this scope
 void (*frameCallbacks[3])(int x, int y) = {drawFrame1, drawFrame2, drawFrame3};
                                                                    ^
exit status 1
'drawFrame1' was not declared in this scope

 void drawFrame1(int x, int y) {
   display.setFontScale2x2(false);
   display.drawString(65 + x, 8 + y, "Now");
   display.drawXbm(x+7,y+7, 50, 50, getIconFromString(weather.getCurrentIcon()));
   display.setFontScale2x2(true);
   display.drawString(64+ x, 20 + y, String(weather.getCurrentTemp()) + "C"); 
 }