Type type = new TypeToken<HashMap<String , MovieDb>>() {}.getType();
gson.fromJson(json, type); //ERROR HERE !!!

当我从Json转换到hashmap对象时，它在没有启用minifying的情况下工作得很好，但是当启用minifying时，它在这一行给出了以下错误：

java.lang.IllegalArgumentException: class a.a.a.a.b declares multiple JSON fields named a
        at com.google.b.b.a.i.a(ReflectiveTypeAdapterFactory.java:172)
        at com.google.b.b.a.i.a(ReflectiveTypeAdapterFactory.java:102)
        at com.google.b.e.a(Gson.java:458)
        at com.google.b.b.a.b.a(CollectionTypeAdapterFactory.java:53)
        at com.google.b.e.a(Gson.java:458)
        at com.google.b.b.a.i.a(ReflectiveTypeAdapterFactory.java:117)
        at com.google.b.b.a.i.a(ReflectiveTypeAdapterFactory.java:166)
        at com.google.b.b.a.i.a(ReflectiveTypeAdapterFactory.java:102)
        at com.google.b.e.a(Gson.java:458)
        at com.google.b.b.a.g.a(MapTypeAdapterFactory.java:126)
        at com.google.b.e.a(Gson.java:458)
        at com.google.b.e.a(Gson.java:926)
        at com.google.b.e.a(Gson.java:892)
        at com.google.b.e.a(Gson.java:841)
        at com.techy.nateshmbhat.moviego.i.onPreExecute(MovieInterface.java:180)
        at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:648)
        at android.os.AsyncTask.execute(AsyncTask.java:595)
        at com.techy.nateshmbhat.moviego.i.b(MovieInterface.java:101)
        at com.techy.nateshmbhat.moviego.a.a(Activity_InTheaterMovies.java:55)