错误解决。我说我想从我的移动设备进行测试，所以我需要给我的电脑的网址，因为它不是一个模拟器我不应该给10.0.2.2。更改URL，并给予我的系统网址的伎俩。希望它可以帮助其他人。

Error solved. I had said I am trying to test it from my mobile device, so I need to give the url of my computer since its not an emulator I am not supposed to give 10.0.2.2. Changing the URL and giving my system URL did the trick. Hope it helps some one.