ขึ้น Error compiling for board Arduino Uno. แก้ยังไงครับ

Arduino: 1.8.19 (Windows 10), Board: "Arduino Uno"

Invalid library found in C:\Program Files (x86)\Arduino\libraries\u8g2-master: no headers files (.h) found in C:\Program Files (x86)\Arduino\libraries\u8g2-master

Invalid library found in C:\Program Files (x86)\Arduino\libraries\U8g2lib: no headers files (.h) found in C:\Program Files (x86)\Arduino\libraries\U8g2lib

C:\Users\User\AppData\Local\Temp\ccdycgBc.ltrans0.ltrans.o: In function `begin':

C:\Users\User\Documents\Arduino\libraries\PulseSensor_Playground\src/PulseSensorPlayground.cpp:56: undefined reference to `PulseSensorPlayground::UsingInterrupts'

C:\Users\User\Documents\Arduino\libraries\PulseSensor_Playground\src/PulseSensorPlayground.cpp:57: undefined reference to `PulseSensorPlaygroundSetupInterrupt()'

collect2.exe: error: ld returned 1 exit status

exit status 1

Error compiling for board Arduino Uno.

Invalid library found in C:\Program Files (x86)\Arduino\libraries\u8g2-master: no headers files (.h) found in C:\Program Files (x86)\Arduino\libraries\u8g2-master

Invalid library found in C:\Program Files (x86)\Arduino\libraries\U8g2lib: no headers files (.h) found in C:\Program Files (x86)\Arduino\libraries\U8g2lib



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