Library conflict

Using Arduino Programming Questions
1

Hello everyone,

I am trying to use a MPR121 to trigger sounds from Mozzi library but when I use Wire library with Mozzi library in the same sketch it crash.

when i add #include <Wire.h> i got this compilation error:

libraries\Wire\utility\twi.c.o: In function `__vector_24':

C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility/twi.c:384: multiple definition of `__vector_24'

libraries\Mozzi-master\twi_nonblock.cpp.o:C:\Program Files (x86)\Arduino\libraries\Mozzi-master/twi_nonblock.cpp:456: first defined here

collect2.exe: error: ld returned 1 exit status

exit status 1
Error compiling for board Arduino/Genuino Uno.

How could I solve this?
Many thanks

2 
multiple definition of `__vector_24'

Both libraries are trying to use the same interrupt, That is never going to work.

There is a small chance that the problem can be worked around but don't hold your breath

Please post a complete program that demonstrates the problem and links to the libraries used

3

Probably the easiest way to work around these two libraries competing for the same interrupt is to replace the Wire library with the SoftWire library which is a software implementation and can use other pins for SCL/SDA.

4

Hi,

I'm having the same issue. Did you manage to make it work?

Thanks