Alexa无法启动我的Alexa技能。当我通过说“打开更大的大脑”或“启动更大的大脑”来测试它时，Alexa说“请求的技能响应有问题”。我已经尝试了一切我可以解决这个问题，检查了交互模型（JSON），函数代码，但它就是不工作。有什么建议来解决这个问题吗？
这是我处理LaunchRequest的Python函数代码：

import logging
import ask_sdk_core.utils as ask_utils
from ask_sdk_core.skill_builder import SkillBuilder
from ask_sdk_core.dispatch_components import AbstractRequestHandler, AbstractExceptionHandler
from ask_sdk_core.utils import is_intent_name
from ask_sdk_model import Response
from ask_sdk_model.ui import SimpleCard

shouldEndRequest = False

to create SkillBuilder instance and register the handlers
sb = SkillBuilder()

custom LaunchRequestHandler to handle the skill launch
class LaunchRequestHandler(AbstractRequestHandler):
def can_handle(self, handler_input):
return is_request_type("LaunchRequest")(handler_input)

def handle(self, handler_input):
speech_text = "Welcome to Bigger Brain, the interaction model that is cooler than Alexa. Let us chat. Ask me whatever you want."  

def handle(self, handler_input):
handler_input.response_builder.speak(speech_text).set_card(
SimpleCard("Bigger Brain", speech_text)).set_should_end_session(
False)
return handler_input.response_builder.response

sb.add_request_handler(LaunchRequestHandler())

这是用于LaunchRequest的JSON（此处仅显示LaunchRequest：）

{
    "interactionModel": {
        "languageModel": {
            "invocationName": "bigger brain",
            "intents": [
                {
                    "name": "LaunchRequest",
                    "slots": [],
                    "samples": [
                        "Start Bigger Brain",
                        "Launch Bigger Brain",
                        "Open Bigger Brain",
                        "Begin Bigger Brain",
                        "Begin",
                        "Alexa launch Bigger Brain"
                    ]
                },