After upgrading android build:gradle:4.0.0 shows me error in proguard about proguard HOT 3 CLOSED

Can you provide more details?

• How is ProGuard integrated in your gradle build? Is this an Android project?
• ProGuard doesn't have an eeror message "Unresolved class name error". What is the complete error message? Do you have a stack trace (gradle option -s)? Do you see any other differences in the ProGuard console output, compared with a working build (gradle option -i to see details)?

from proguard.

I integrated like this,

buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
}

I can build without any error but the issue is that when I open proguard-rules.pro then following errors occur, Unresolved class name

from proguard.

Hi @attaullahpro, this is actually an Android Studio feature and not related to ProGuard: recent versions of Android Studio include ProGuard rule support in *.pro files https://developer.android.com/studio/releases?hl=hr#4-0-0-smart-code-shrinker-rules

from proguard.