编译出错什么问题???
D:\arduino-1.0.1\libraries\Tone\Tone.cpp: In member function 'void Tone::begin(uint8_t)':
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:132: error: 'bitWrite' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:134: error: 'digitalPinToPort' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:134: error: 'portOutputRegister' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:135: error: 'digitalPinToBitMask' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp: In member function 'void Tone::play(uint16_t, uint32_t)':
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:198: error: 'OUTPUT' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:198: error: 'pinMode' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:301: error: 'bitWrite' was not declared in this scope
D:\arduino-1.0.1\libraries\Tone\Tone.cpp: In member function 'void Tone::stop()':
D:\arduino-1.0.1\libraries\Tone\Tone.cpp:361: error: 'digitalWrite' was not declared in this scope