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Has anyone ever used Moshi as a converter for retrofit. I am having some problems with Array List. Exception is thrown because I don't have an adapter for array list. I don't quite understand what I am supposed to do here. Retrofit version 2.5.0.

Caused by: java.lang.IllegalArgumentExceptio:Platform java.util.ArrayList&lt;java.lang.String&gt; (with no annotations) requires explicit JsonAdapter to be registered

Have you try using `List` instead of `ArrayList`? I’m having no trouble using Retrofit with Moshi.

Looks that this is expected behaviour, you need explicit adapter for this case
<https://github.com/square/moshi/blob/moshi-parent-1.8.0/moshi/src/test/java/com/squareup/moshi/MoshiTest.java#L1008>

And I think Edward is right, use List instead, Moshi doesn’t support out of the box serializers for concrete implementation of list, but supports abstract List implementation

see
<https://github.com/square/moshi/issues/409#issuecomment-351064233>