android中使用GSON解析成List发生了奇怪的错误

W/System.err: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 2 path $
at com.google.gson.Gson.fromJson(Gson.java:944)
at com.google.gson.Gson.fromJson(Gson.java:897)
at com.google.gson.Gson.fromJson(Gson.java:846)
at com.example.administrator.woleme.shop_list.parseJSON(shop_list.java:93)
at com.example.administrator.woleme.shop_list.access$000(shop_list.java:30)
at com.example.administrator.woleme.shop_list$1 $1.onResponse(shop_list.java:70) at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:504)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764)
W/System.err: Caused by: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 2 path $
at com.google.gson.stream.JsonReader.beginArray(JsonReader.java:351)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory $Adapter.read(CollectionTypeAdapterFactory.java:80) at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61)
at com.google.gson.Gson.fromJson(Gson.java:932)

解决办法：查阅了外网大量资料，有的人说将project clean一下就可以解决，但是我的程序还是不能正常运行，然后在Stack Overflow上看到一个解决 Expected BEGIN_OBJECT but was STRING 的方案，收到了启发

我在自己的程序中加了两行代码

然后就解决了，希望对各位有启发