I am new to GSM shield. I have problem when verify/compile Sketch with GSM library for Arduino Yun. I got the following error while compiling:
/Applications/Arduino.app/Contents/Resources/Java/libraries/GSM/src/GSM3CircularBuffer.cpp: In member function 'void GSM3CircularBuffer::debugBuffer()':
/Applications/Arduino.app/Contents/Resources/Java/libraries/GSM/src/GSM3CircularBuffer.cpp:269: error: 'Serial' was not declared in this scope
/Applications/Arduino.app/Contents/Resources/Java/libraries/GSM/src/GSM3CircularBuffer.cpp: In static member function 'static void GSM3CircularBuffer::printCharDebug(uint8_t)':
/Applications/Arduino.app/Contents/Resources/Java/libraries/GSM/src/GSM3CircularBuffer.cpp:282: error: 'Serial' was not declared in this scope
/Applications/Arduino.app/Contents/Resources/Java/libraries/GSM/src/GSM3CircularBuffer.cpp:285: error: 'Serial' was not declared in this scope
Can anyone point me to right direction how to fix this? Thank you.