I'm trying to enable proguard in my project but my class keeps getting obfuscated by the proguard and I got this message:
Process: com.myapp.myapp, PID: 4313
java.lang.IllegalArgumentException: Unable to create converter for class com.myapp.myapp.data.remote.response.LoginResponse
for method AccountsEndPoint.login
at retrofit2.ServiceMethod$Builder.methodError(ServiceMethod.java:752)
at retrofit2.ServiceMethod$Builder.createResponseConverter(ServiceMethod.java:738)
at retrofit2.ServiceMethod$Builder.build(ServiceMethod.java:169)
at retrofit2.Retrofit.loadServiceMethod(Retrofit.java:170)
at retrofit2.Retrofit$1.invoke(Retrofit.java:147)
at java.lang.reflect.Proxy.invoke(Proxy.java:813)
at $Proxy1.login(Unknown Source)
at com.myapp.myapp.presentation.activities.LoginActivity.a(LoginActivity.java:211)
at com.myapp.myapp.presentation.activities.LoginActivity$1.onClick(LoginActivity.java:97)
at android.view.View.performClick(View.java:5637)
at android.view.View$PerformClick.run(View.java:22429)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.lang.IllegalArgumentException: class com.myapp.myapp.data.b.a.a declares multiple JSON fields named a
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:170)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:100)
at com.google.gson.Gson.getAdapter(Gson.java:423)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:115)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:164)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:100)
at com.google.gson.Gson.getAdapter(Gson.java:423)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:115)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:164)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:100)
at com.google.gson.Gson.getAdapter(Gson.java:423)
at retrofit2.converter.gson.GsonConverterFactory.responseBodyConverter(GsonConverterFactory.java:64)
at retrofit2.Retrofit.nextResponseBodyConverter(Retrofit.java:330)
at retrofit2.Retrofit.responseBodyConverter(Retrofit.java:313)
at retrofit2.ServiceMethod$Builder.createResponseConverter(ServiceMethod.java:736)
at retrofit2.ServiceMethod$Builder.build(ServiceMethod.java:169)
at retrofit2.Retrofit.loadServiceMethod(Retrofit.java:170)
at retrofit2.Retrofit$1.invoke(Retrofit.java:147)
at java.lang.reflect.Proxy.invoke(Proxy.java:813)
at $Proxy1.login(Unknown Source)
at com.myapp.myapp.presentation.activities.LoginActivity.a(LoginActivity.java:211)
at com.myapp.myapp.presentation.activities.LoginActivity$1.onClick(LoginActivity.java:97)
at android.view.View.performClick(View.java:5637)
at android.view.View$PerformClick.run(View.java:22429)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
I'm using @SerializedName annotation in my models also I'm adding to my proguard-rules.pro:
-keep class com.myapp.myapp.data.remote.request.** { *;}
-keep class com.myapp.myapp.data.remote.response.** { *; }
Whether you come across this error, check if you:
1 - Added @SerializedName to your model's attributes. (This helps GSON to find the real name)
2 - Add this configuration to your proguard file:
###GSON
##---------------Begin: proguard configuration for Gson ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature
# For using GSON @Expose annotation
-keepattributes *Annotation*
# Gson specific classes
-dontwarn sun.misc.**
#-keep class com.google.gson.stream.** { *; }
# Prevent proguard from stripping interface information from TypeAdapterFactory,
# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer
##---------------End: proguard configuration for Gson ----------
-keep class com.myapp.data.remote.request.** { *; } # <--- Add your models package here
3- If you keep getting this error check if ALL your models are using the @SerializedName and are in the package included in above rule