Programming Arduino for rf support

[Vic]

L.s.

I'm trying to upload the hat.ino to an arduino pro mini to have rf capabilities to my pipylot. And have some issues on that.
I've placed the RCSwitch and the 3 IRlib libraries in the library folder. And pressed compile in the Arduino IDE.

And voila, the arduino ide doesn't compile. The error messages that I have are attached below..

Could someone point me in the right direction?

Code:

C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\hat\hat.ino:303:39: warning: missing initializer for member 'codes_type::ltime' [-Wmissing-field-initializers]
static struct codes_type codes[4] = {0};
                                      ^
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\hat\hat.ino:303:39: warning: missing initializer for member 'codes_type::repeat_count' [-Wmissing-field-initializers]
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibDecodeBase.cpp: In member function 'void IRdecodeBase::dumpResults(bool)':
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibDecodeBase.cpp:56:8: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
       if(interval>0)LowSpace=min(LowSpace, interval);  HiSpace=max (HiSpace, interval);
       ^~
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibDecodeBase.cpp:56:57: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
       if(interval>0)LowSpace=min(LowSpace, interval);  HiSpace=max (HiSpace, interval);
                                                        ^~~~~~~
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibDecodeBase.cpp: In member function 'bool IRdecodeBase::MATCH(int16_t, int16_t)':
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibDecodeBase.cpp:130:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  return (val >= (uint16_t)(expected*(1.0-PERCENT_TOLERANCE/100.0)))
          ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibDecodeBase.cpp:131:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      && (val <= (uint16_t)(expected*(1.0+PERCENT_TOLERANCE/100.0)));
          ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibRecvBase.cpp: In function 'void IRLib_IRrecvComplete(uint8_t)':
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\libraries\IRLib2\IRLibRecvBase.cpp:159:35: warning: unused parameter 'Reason' [-Wunused-parameter]
void IRLib_IRrecvComplete(uint8_t Reason) {
                                  ^~~~~~
HardwareSerial0.cpp.o (symbol from plugin): In function `Serial':
(.text+0x0): multiple definition of `__vector_18'
sketch\hat.ino.cpp.o (symbol from plugin):(.text+0x0): first defined here
HardwareSerial0.cpp.o (symbol from plugin): In function `Serial':
(.text+0x0): multiple definition of `__vector_19'
sketch\hat.ino.cpp.o (symbol from plugin):(.text+0x0): first defined here
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\hat\hat.ino: In function 'set_buzzer':
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\hat\hat.ino:207:17: warning: 'freq' may be used uninitialized in this function [-Wmaybe-uninitialized]
    OCR2B = freq/2;
                ^
C:\Users\wboek\Downloads\arduino-1.8.19-windows\arduino-1.8.19\hat\hat.ino:191:13: note: 'freq' was declared here
    uint8_t freq;
            ^
collect2.exe: error: ld returned 1 exit status
exit status 1
Fout bij het compileren voor board Arduino Pro or Pro Mini