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Dex method limit / merge failure

Android / Gradle · last reviewed 2026-11-10

The error looks like this

Cannot fit requested classes in a single dex file (# methods: 72413 > 65536)

Why it happens

minSdk < 21 without multidex, or duplicate classes.

How to fix it

  1. Set minSdkVersion 21+ (multidex automatic).
  2. If it is a duplicate-class issue, see the duplicate class fix.

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