Thanks Pete. I have tried that too but still can`t compile. Here is my verbose…
"C:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\python3\\3.7.2-post1/python3" "C:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4/tools/signing.py" --mode header --publickey "C:\\Users\\Bill\\Documents\\Arduino\\double k probe bbq temp monitor blynk\\double_k_probe_bbq_temp_monitor_blynk/public.key" --out "C:\\Users\\Bill\\AppData\\Local\\Temp\\arduino_build_104699/core/Updater_Signing.h"
"C:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\2.5.0-4-b40a506/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4/tools/sdk/include" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4/tools/sdk/lwip2/include" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\Bill\\AppData\\Local\\Temp\\arduino_build_104699/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++11 -MMD -ffunction-sections -fdata-sections -fno-exceptions -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10814 -DARDUINO_ESP8266_GENERIC -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_GENERIC\"" -DLED_BUILTIN=2 -DFLASHMODE_DOUT -DESP8266 "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\cores\\esp8266" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\variants\\generic" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\ESP8266WiFi\\src" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\ESP8266mDNS\\src" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\ArduinoOTA" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\ESP8266WebServer\\src" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\ESP8266HTTPUpdateServer\\src" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\Blynk\\src" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\SimpleTimer" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\Wire" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\MAX31855" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\Adafruit_GFX_Library" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\Adafruit_SSD1306" "-IC:\\Users\\Bill\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.7.4\\libraries\\SPI" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\Time-master" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\RunningMedian" "-IC:\\Users\\Bill\\Documents\\Arduino\\libraries\\Adafruit_BusIO" "C:\\Users\\Bill\\AppData\\Local\\Temp\\arduino_build_104699\\sketch\\double_k_probe_bbq_temp_monitor_blynk.ino.cpp" -o "C:\\Users\\Bill\\AppData\\Local\\Temp\\arduino_build_104699\\sketch\\double_k_probe_bbq_temp_monitor_blynk.ino.cpp.o"
In file included from C:\Users\Bill\Documents\Arduino\libraries\Blynk\src/Blynk/BlynkApi.h:17:0,
from C:\Users\Bill\Documents\Arduino\libraries\Blynk\src/BlynkApiArduino.h:14,
from C:\Users\Bill\Documents\Arduino\libraries\Blynk\src/BlynkSimpleEsp8266.h:24,
from C:\Users\Bill\Documents\Arduino\double k probe bbq temp monitor blynk\double_k_probe_bbq_temp_monitor_blynk\double_k_probe_bbq_temp_monitor_blynk.ino:15:
C:\Users\Bill\Documents\Arduino\libraries\Blynk\src/Blynk/BlynkTimer.h:36:21: error: redefinition of 'class BlynkTimer'
#define SimpleTimer BlynkTimer
^
C:\Users\Bill\Documents\Arduino\libraries\SimpleTimer/SimpleTimer.h:10:7: note: in expansion of macro 'SimpleTimer'
class SimpleTimer {
^
C:\Users\Bill\Documents\Arduino\libraries\Blynk\src/Blynk/BlynkTimer.h:36:21: error: previous definition of 'class BlynkTimer'
#define SimpleTimer BlynkTimer
^
C:\Users\Bill\Documents\Arduino\libraries\Blynk\src/Blynk/BlynkTimer.h:41:7: note: in expansion of macro 'SimpleTimer'
class SimpleTimer {
^
Using library ESP8266WiFi at version 1.0 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266WiFi
Using library ESP8266mDNS at version 1.2 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266mDNS
Using library ArduinoOTA at version 1.0 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ArduinoOTA
Using library ESP8266WebServer at version 1.0 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266WebServer
Using library ESP8266HTTPUpdateServer at version 1.0 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266HTTPUpdateServer
Using library Blynk at version 0.6.1 in folder: C:\Users\Bill\Documents\Arduino\libraries\Blynk
Using library SimpleTimer at version 1.0.0 in folder: C:\Users\Bill\Documents\Arduino\libraries\SimpleTimer
Using library Wire at version 1.0 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\Wire
Using library MAX31855 in folder: C:\Users\Bill\Documents\Arduino\libraries\MAX31855 (legacy)
Using library Adafruit_GFX_Library at version 1.10.4 in folder: C:\Users\Bill\Documents\Arduino\libraries\Adafruit_GFX_Library
Using library Adafruit_SSD1306 at version 2.4.0 in folder: C:\Users\Bill\Documents\Arduino\libraries\Adafruit_SSD1306
Using library SPI at version 1.0 in folder: C:\Users\Bill\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\SPI
Using library Time-master at version 1.6 in folder: C:\Users\Bill\Documents\Arduino\libraries\Time-master
Using library RunningMedian at version 0.2.1 in folder: C:\Users\Bill\Documents\Arduino\libraries\RunningMedian
Using library Adafruit_BusIO at version 1.7.0 in folder: C:\Users\Bill\Documents\Arduino\libraries\Adafruit_BusIO
exit status 1
Error compiling for board Generic ESP8266 Module.