Solved the error "Cannot fit requested classes in a single dex file (# methods: 67512 65536)" in Android Studio.
build.gradle file changes for the minSdkVersion 20 or lower.
1. Add 'multiDexEnabled true' in defaultConfig
2. Add multiplex library implementation "androidx.multidex:multidex:2.0.1" in dependencies (not required for latest gradle versions)
Android Studio developer page reference
https://developer.android.com/studio/...
#androidstudio
#singledexfile
#multidex