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To fix this issue, try using custom proguard config file to keep the classes like below.
\-dontwarn com.google.android.gms.**
\-keep class com.google.android.gms.** { *; }
\-keep class com.google.firebase.** { *; }
Similar issue: https://stackoverflow.com/a/58443547/11083277
Best Regards,
Jarvan Zhang
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