problem uploading arduino sketch on esp8266-12e i have a new mac os sierra installed.
i just installed arduino IDE and the serial drivers for mac os x to make the serial usb port available for esp8266 device

when i try to flash the device through the IDE i have these errors:

Arduino:1.8.3 (Mac OS X), Scheda:"NodeMCU 1.0 (ESP-12E Module), 80 MHz, 115200, 4M (3M SPIFFS)"

Archiving built core (caching) in: /var/folders/vz/qxry2ffs3rnd2xtd557pgcf00000gp/T/arduino_cache_169716/core/core_esp8266_esp8266_nodemcuv2_CpuFrequency_80,UploadSpeed_115200,FlashSize_4M3M_244c37a477ed4ef8a63952f7a6e6a50b.a
Lo sketch usa 222149 byte (21%) dello spazio disponibile per i programmi. Il massimo è 1044464 byte.
Le variabili globali usano 31524 byte (38%) di memoria dinamica, lasciando altri 50396 byte liberi per le variabili locali. Il massimo è 81920 byte.
error: failed reading byte
warning: espcomm_send_command: cant receive slip payload data
error: unslip sequence wrong
warning: espcomm_send_command: can't receive command response header
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed


what can i do?
I installed another version of the driver from silabs' website and now it's working.