BME680 BSEC 1.4.7.2 installation problems on Arduino ESP8266 ( NodeMCU v2/Wemos mini pro)

[ngjingrui]

Hi, I am currently setting up my Adafruit BME680 on Wemos D1 R1 (ESP8266-based). I managed to successfully retrieve the sensor readings using Adafruit BME680 library. However, what's left is to calculate IAQ from gas readings using the Bosc Arduino library here.

Perhaps because I am less than a week old in the arduino community, I am only able to complete up to step 2 and is stuck at step 3  (Modify the platform.txt file) as I am unable to locate platform.txt anywhere... Also, I cannot seem to find C:\Users\username\AppData\Local\Arduino15, where platform.txt might be in...

Can someone please give me some guidance on how can I complete step 3 and step 4 of the installation of Bosc Arduino library...? Thank you... 

[JohnRob]

The Platform.txt file is at:

C:\Users\<your user name>\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.2

Note:  <your user name> is the name you log in under (assuming windows).   You can see it by looking at 

C:\users\

The folder "AppData" is hidden from normal view.  You will have to change the "File Explorer" settings to be able to see it.