Analytics broken on Marshmallow?

Question

I'm using analytics and while compiling I get this proguard warnings:

Warning: com.google.android.gms.internal.zzw$zza: can't find superclass or interface org.apache.http.client.methods.HttpEntityEnclosingRequestBase
Warning: com.google.android.gms.analytics.internal.zzam: can't find referenced class org.apache.http.NameValuePair
Warning: com.google.android.gms.analytics.internal.zzam: can't find referenced class org.apache.http.client.utils.URLEncodedUtils

^{and much more.}

I'm using these dependencies:

compile 'com.google.android.gms:play-services-base:7.8.0'
compile 'com.google.android.gms:play-services-gcm:7.8.0'

Is this a bug? Is there any workaround for that?

Answer 1

Adding to proguard

-keep public class com.google.android.gms.**
-dontwarn com.google.android.gms.**

seems to fix

Answer 2

I think if you add the legacy Http support to the build.gradle of your app (just inside the android section) then it should resolve the issue until GMS and other libraries move to the non-removed classes

android {
    useLibrary 'org.apache.http.legacy' // Need until GMS upgraded
}

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