Hi, I don't manage to use a secret environment var...

# gradle

[Kaudaj]

Hi,
I don't manage to use a secret environment variable in my Android app. This is what I tried:

• MYPROJECT_IP_ADDRESS="XXX.XX.XXX.X" in my C:\Users\[Me]\.gradle\gradle.properties
• buildConfigField "String", "IP_ADDRESS", "\"MYPROJECT_IP_ADDRESS\"" in build.gradle
• val ipAddress = BuildConfig.IP_ADDRESS to retrieve it in Kotlin
ipAddress equals MYPROJECT_IP_ADDRESS . What did I do wrong?
Thanks!