com.bluelinelabs.logansquare.NoSuchMapperException: Class com.networkgenerator.model.Request could not be mapped to a JSON object. Perhaps it hasn't been annotated with @JsonObject?
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at com.bluelinelabs.logansquare.LoganSquare.mapperFor(LoganSquare.java:267)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at com.bluelinelabs.logansquare.LoganSquare.serialize(LoganSquare.java:131)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at com.liuguangqiang.asyncokhttp.sample.MainActivity.get(MainActivity.java:90)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at com.liuguangqiang.asyncokhttp.sample.MainActivity.test(MainActivity.java:32)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at com.liuguangqiang.asyncokhttp.sample.MainActivity.onCreate(MainActivity.java:26)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at android.app.Activity.performCreate(Activity.java:5933)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at android.app.ActivityThread.access$800(ActivityThread.java:144)
11-30 02:00:49.548 17670-17670/com.liuguangqiang.asyncokhttp W/System.err:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)