65K reference limit
Unity: All versions | Appodeal SDK: All versions
The error "Cannot fit requested classes in a single dex file" happens if the number of method references exceed the 65K reference limit.
The error example from Unity Editor Log:
stderr[
D8: Cannot fit requested classes in a single dex file (# methods: 136481 > 65536)
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':launcher:transformDexArchiveWithExternalLibsDexMergerForRelease'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives:
The number of method references in a .dex file cannot exceed 64K.
Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html
To solve the error enable Multidex support.
- Unity 2019.3 or higher
- Unity 2019.2 and below
Go to File → Build settings → Player Settings → Player → Minimum API level and set up minimum API level to 21 or higher, where Multidex is enabled by default.
Add Multidex support to your project. Follow this guide to add Multidex.