Android Studio dolphin 2021.3.21 - app:l8DexDesugarLib FAILED -java.lang.IllegalStateException: This is not a JSON Array

Question

I recently upgraded Android studio to Dolphin 2021.3.21 with following settings.

1. kotlin G plugin:1.7.10
2. com.android.tools:r8:3.3.75
3. Android G plugin : 7.2.2

and using Java 11

When I rebuild my project it's failing and the reason is:

Task :app:l8DexDesugarLibQaDebug FAILED Warning: Human desugared library specification format version 200 mismatches the parser expected version (100). This is allowed and should happen only while extending the specifications. Error: java.lang.IllegalStateException: This is not a JSON Array. Human desugared library specification format version 200 mismatches the parser expected version (100). This is allowed and should happen only while extending the specifications.

java.lang.IllegalStateException: This is not a JSON Array.

Kratz

Answer 1

I too had the same situation.

If you are implementing the following two libraries, I solved it when I lowered the version as below.

implementation 'androidx.appcompat:appcompat:1.5.1'

coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'

Procto

Don't know why this works; but yet works. – Paestum