Cannot fit requested classes in a single dex file (# methods: 123394 > 65536) code example

Example 1: D8: Cannot fit requested classes in a single dex file (# methods: 85258 > 65536)

defaultConfig {
    ...

    multiDexEnabled true
}

Example 2: Cannot fit requested classes in a single dex file (# methods: 65710 > 65536)

def multidex_version = "2.0.1"
 implementation 'androidx.multidex:multidex:$multidex_version'