D8: Cannot fit requested classes in a single dex file (# methods: 70946 > 65536)
com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives:
The number of method references in a .dex file cannot exceed 64K.
【解決策】minmum API Level 4.4 → 5.0
【開発環境】
OS：Windows10
Unity：2020.3.9f1
【参考】
https://forum.unity.com/threads/cant-build-with-multidex-enabled.773348/
