Hi Guys.

I want do compile the .ino for the esp8266 wifi gateway. i used the normal script, put my wland access data into the script with pwassword. I have left everything as it was.
I selected the "node MCU 1.0" Board and started to compile.
I´m using the arduino ide 1.8.5 and mysensor 2.2

Now i´ve the following errors

In file included from D:\Users\Sascha\Documents\Arduino\libraries\MySensors/MySensors.h:405:0,

                 from C:\Users\Sascha\AppData\Local\Temp\arduino_modified_sketch_127728\GatewayESP8266.ino:120:

D:\Users\Sascha\Documents\Arduino\libraries\MySensors/hal/architecture/ESP8266/MyMainESP8266.cpp:57:53: error: declaration of C function 'void ets_update_cpu_frequency(int)' conflicts with

 extern "C" void ets_update_cpu_frequency(int freqmhz);

                                                     ^

In file included from C:\Users\Sascha\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.1\cores\esp8266/pgmspace.h:11:0,

                 from C:\Users\Sascha\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.1\cores\esp8266/Arduino.h:258,

                 from sketch\GatewayESP8266.ino.cpp:1:

C:\Users\Sascha\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.1/tools/sdk/include/ets_sys.h:218:6: error: previous declaration 'void ets_update_cpu_frequency(uint32_t)' here

 void ets_update_cpu_frequency(uint32_t ticks_per_us);

      ^

exit status 1
Fehler beim Kompilieren für das Board Generic ESP8266 Module.

Can someone help ?

greetings
Sascha