Anybody had luck getting this to work with platformio + stm32duino?

[Davey3D]

Tried various options but get:

Compiling .pioenvs\nucleo_l432kc\lib\nextionsimple\Nextion.o
lib\nextionsimple\Nextion.cpp: In member function 'uint8_t Nextion::pageId()':

lib\nextionsimple\Nextion.cpp:302:7: warning: unused variable 'a' [-Wunused-variable]
int a = -1;
^
lib\nextionsimple\Nextion.cpp: In member function 'void Nextion::flushSerial()':
lib\nextionsimple\Nextion.cpp:334:10: error: request for member 'flush' in '((Nextion*)this)->N
extion::Serial', which is of pointer type 'HardwareSerial*' (maybe you meant to use '->' ?)
Serial.flush();
^
lib\nextionsimple\Nextion.cpp: In member function 'boolean Nextion::ack()':
lib\nextionsimple\Nextion.cpp:119:1: warning: control reaches end of non-void function [-Wretur
n-type]
}//end
^
*** [.pioenvs\nucleo_l432kc\lib\nextionsimple\Nextion.o] Error 1
[ERROR] Took 2.42 seconds