Android studio : error: unmappable character for encoding UTF-8

Question

first, my project is building and working correctly from android studio under macOS natively (not a VM). My problem is on a windows machine (still not a VM) where everything build correctly but still I have some encoding errors.(12 errors)

error: unmappable character for encoding UTF-8
error: illegal character: '\ufffd'

So I try this : Android Studio : unmappable character for encoding UTF-8

Now I only have 4 errors which are like this one:
error: illegal character: '\ufffd'
public static final int XXXX_view_account_account_js_cities_gen�ve = 0x7f0a0953;

I tried :
1. Android Studio:error: illegal character: '\u2028' => Try to delete and rewrite it
2. I tried also ISO-8859-1 encoding

Here is my gradle build and settings build :

 android {  
     compileSdkVersion 25   
     buildToolsVersion "25.0.2"   
     compileOptions.encoding = 'windows-1251'

and SETTINGS IMG