D8: Cannot fit requested classes in a single dex file (# fields: 66101 > 65536) com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: The number of method references in a .dex file cannot exceed 64K. code example

Example 1: cannot fit requested classes in a single dex file

//Add the library in app gradle
implementation 'com.android.support:multidex:1.0.3'

//Add this to the default config in the app gradle
multiDexEnabled true
  
//If this still doesn't work, consider adding this name into the android manifesto
android:name=".MyApplication"

Example 2: cannot fit requested classes in a single dex file flutter

defaultConfig {
    ...

    multiDexEnabled true
}


//In dependencies
dependencies {
	implementation 'androidx.multidex:multidex:2.0.1'