C:UserslenovoDownloadsAdafruit_MQTT_Library-master1examplesmqtt_esp8266mqtt_esp8266.ino: In function 'void setup()':

mqtt_esp8266:63: error: invalid conversion from 'const char*' to 'uint8_t {aka unsigned char}' [-fpermissive]

   pinMode(relay,OUTPUT);

                       ^

In file included from sketchmqtt_esp8266.ino.cpp:1:0:

C:UserslenovoAppDataLocalArduino15packagesesp8266hardwareesp82662.3.0coresesp8266/Arduino.h:194:6: error:   initializing argument 1 of 'void pinMode(uint8_t, uint8_t)' [-fpermissive]

 void pinMode(uint8_t pin, uint8_t mode);

      ^

C:UserslenovoDownloadsAdafruit_MQTT_Library-master1examplesmqtt_esp8266mqtt_esp8266.ino: In function 'void loop()':

mqtt_esp8266:103: error: invalid conversion from 'const char*' to 'uint8_t {aka unsigned char}' [-fpermissive]

       digitalWrite(relay,state);

                               ^

In file included from sketchmqtt_esp8266.ino.cpp:1:0:

C:UserslenovoAppDataLocalArduino15packagesesp8266hardwareesp82662.3.0coresesp8266/Arduino.h:195:6: error:   initializing argument 1 of 'void digitalWrite(uint8_t, uint8_t)' [-fpermissive]

 void digitalWrite(uint8_t pin, uint8_t val);

      ^

exit status 1
invalid conversion from 'const char*' to 'uint8_t {aka unsigned char}' [-fpermissive]

pinMode(relay,OUTPUT);

void pinMode(uint8_t pin, uint8_t mode);

digitalWrite(relay,state);

void digitalWrite(uint8_t pin, uint8_t val);