Exception error (0) on pressing learn-button in shutter

[mijoklein]

Hi there,
i tried to get this thing to work but it doesn't. This is what i get using the exception decoder on Arduino IDE 1.8.9

Exception 0: Illegal instruction
Decoding 11 results
0x40202efd: keygen() at ?? line ?
0x40202efd: keygen() at ?? line ?
0x40202e8a: keygen() at C:\Users\Vivien\Documents\Arduino\Jarolift_MQTT/Jarolift_MQTT.ino line 466
0x40100d4a: free at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\umm_malloc/umm_malloc.cpp line 595
: (inlined by) free at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\umm_malloc/umm_malloc.cpp line 574
0x40210b69: String::invalidate() at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/WString.cpp line 148
0x402038da: String::~String() at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/WString.h line 79
: (inlined by) cmd_learn(int) at C:\Users\Vivien\Documents\Arduino\Jarolift_MQTT/Jarolift_MQTT.ino line 1006
0x40212512: __delay at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/core_esp8266_wiring.cpp line 54
0x4020ac51: String::operator==(char const*) const at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/WString.h line 149
: (inlined by) loop at C:\Users\Vivien\Documents\Arduino\Jarolift_MQTT/Jarolift_MQTT.ino line 433
0x401002f1: esp_schedule at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/core_esp8266_main.cpp line 129
0x40211ea8: loop_wrapper() at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/core_esp8266_main.cpp line 201
0x401010d9: cont_wrapper at C:\Users\Vivien\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/cont.S line 81

What is wrong with my installation ?

[mijoklein]

I found out that the version 3.02 of the ESP8266-library does not work. 2.7.4 is working. So you don't have to update this ....