Error compiling when using Arduino's tone() after including MeOrion.h

[mrrenwick]

When attempting to use the Arduino tone() function with "MeOrion.h" included, there is a compiler error.

#include "MeOrion.h"

void setup() {
}

void loop() {
  tone(1, 250, 1000);
}

The output error code is:

Tone.cpp.o (symbol from plugin): In function timer0_pin_port': (.text+0x0): multiple definition of __vector_7'
libraries/Makeblock-Libraries-master/MeIR.cpp.o (symbol from plugin):(.text+0x0): first defined here
collect2: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino Uno.

[mrrenwick]

This seems to be caused by MeIR.cpp, which is compiled if you include any of the Makeblock Arduino library (even if you are not using it).

As a temporary work-around, you can rename the MeIR.cpp file to MeIR.cpp2 so that it will not compile.

On Ubuntu 20.04.2 LTS, the library can be found in "~/snap/arduino/current/Arduino/libraries/Makeblock-Libraries-master/src/MeIR.cpp"

[mrrenwick]

Including <MeMCore.h> instead of "MeOrion.h" does not solve the problem.