Hi, I am new in arduino, and I get this error

[nucklearproject]

I try to run a simple example and I get this error. Is there a solution?

In file included from c:\users\hbama\documents\proyectosarduino\libraries\midier\src\config\config.h:3, from c:\Users\hbama\Documents\ProyectosArduino\libraries\Midier\src/layer/layer.h:3, from c:\Users\hbama\Documents\ProyectosArduino\libraries\Midier\src/Midier.h:3, from C:\Users\hbama\Documents\ProyectosArduino\midierTests\midierTests.ino:9: c:\users\hbama\documents\proyectosarduino\libraries\midier\src\note\note.h:29:16: error: enumerator value '-1' is outside the range of underlying type 'char' Flat = -1,

Thanks :)

[razrotenberg]

hmmm seems like it's related to compilation.
is your Arduino IDE configured correctly?