duplicate clas error

[hsynkunduz]

hello, we have a big project with lots of libraries added. when I add lingohub to build.gradle file and try to run project I got below error

Duplicate class a.a.a found in modules jetified-installreferrer-2.2-runtime (com.android.installreferrer:installreferrer:2.2) and jetified-lh-android-sdk-1.0.0-beta06-runtime (com.lingohub:lh-android-sdk:1.0.0-beta06)

I tried to add these things in proguard-rules.pro file

-keep class com.lingohub.** { *; } -keep interface com.lingohub.** { *; } -keep enum com.lingohub.** { *; }

and I'm using

implementation 'com.lingohub:lh-android-sdk:1.0.0-beta06'

still I got the error. Do you have a solution for this?