errors in the code

[iwantpizza10]

no idea what is going on, i am not very good at c++ so i will send this

C:\Users\-\AppData\Local\Temp\ccoQd4Ct.ltrans0.ltrans.o: In function `setup':
C:\Users\-\Downloads\Moppy2Microcontroller-2.1.0\Moppy2-Arduino\main/main.ino:72: undefined reference to `MoppySerial::begin()'
C:\Users\-\AppData\Local\Temp\ccoQd4Ct.ltrans0.ltrans.o: In function `loop':
C:\Users\-\Downloads\Moppy2Microcontroller-2.1.0\Moppy2-Arduino\main/main.ino:80: undefined reference to `MoppySerial::readMessages()'
C:\Users\-\AppData\Local\Temp\ccoQd4Ct.ltrans0.ltrans.o: In function `instruments::FloppyDrives::FloppyDrives()':
C:\Users\-\Downloads\Moppy2Microcontroller-2.1.0\Moppy2-Arduino\main\MoppyInstruments/FloppyDrives.h:16: undefined reference to `vtable for instruments::FloppyDrives'
C:\Users\-\Downloads\Moppy2Microcontroller-2.1.0\Moppy2-Arduino\main\MoppyInstruments/FloppyDrives.h:16: undefined reference to `vtable for instruments::FloppyDrives'
C:\Users\-\AppData\Local\Temp\ccoQd4Ct.ltrans0.ltrans.o: In function `_GLOBAL__sub_I_instrument':
C:\Users\-\Downloads\Moppy2Microcontroller-2.1.0\Moppy2-Arduino\main/main.ino:56: undefined reference to `MoppySerial::MoppySerial(MoppyMessageConsumer*)'
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino Uno.

[Sammy1Am]

Sorry this got lost, it's still a pretty busy time here.

What steps did you take to get to this point? It looks like whatever you're using to compile is having issues finding all the code.