Problem of compilation of Bluefruit : many versions of the library found...

I have a problem when I compile the Bluefruit library.

I don't understand why it suddenly doesn't compile.
The installation was ok and i compile the project since a while...

Plusieurs bibliothèque trouvées pour "bluefruit.h"
Utilisé : C:\Users\F085404\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\0.14.6\libraries\Bluefruit52Lib
Plusieurs bibliothèque trouvées pour "Adafruit_LittleFS.h"
Utilisé : C:\Users\F085404\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\0.14.6\libraries\Adafruit_LittleFS
Plusieurs bibliothèque trouvées pour "InternalFileSystem.h"
Utilisé : C:\Users\F085404\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\0.14.6\libraries\InternalFileSytem
Utilisation de la bibliothèque Bluefruit52Lib version 0.14.6 dans le dossier: C:\Users\F085404\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\0.14.6\libraries\Bluefruit52Lib 
Utilisation de la bibliothèque Adafruit_LittleFS version 0.11.0 dans le dossier: C:\Users\F085404\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\0.14.6\libraries\Adafruit_LittleFS 
Utilisation de la bibliothèque InternalFileSytem version 0.11.0 dans le dossier: C:\Users\F085404\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\0.14.6\libraries\InternalFileSytem 
exit status 1
Erreur de compilation pour la carte Adafruit Bluefruit Feather nRF52832


In fact it was only a warning!!!
The error was before this messages.

be carreful to see all the differents verbose messages of the compiler!!!

Thanks for taking the time to post an update @Vincent25. I'm glad to hear you found the real error.

FYI, there is actually only one version of each library. Those "Plusieurs bibliothèque trouvées pour" messages are caused by a bug in Arduino IDE 1.8.10:

That will be fixed in the Arduino IDE 1.8.11 release. Until then, please just ignore these messages. You'll know a legitimate "Plusieurs bibliothèque trouvées pour" message when it shows a "not used" path in addition to the "Utilisé" path.