我在发出POST请求时一直试图修复我的代码,但我似乎无法让它正常工作。我不断收到此错误消息:
2013-12-06 09:54:06.528 postTest[1010:a0b] response is 500, application/json
2013-12-06 09:54:06.560 postTest[1010:a0b] data is (null)
2013-12-06 09:54:06.562 postTest[1010:a0b] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'data parameter is nil'
知道我做错了什么吗?