到目前为止，我的机器人一直运行良好，突然从API.ai中收到一个错误，称为未授权。我检查了我的Heroku日志，这就是我发现的结果
任何想法都值得赞赏
2018-08-18T14:27:59.087498+00:00 heroku[router]: at=info method=POST path="/api/messages" host=zupcoin.herokuapp.com request_id=7d2de5a3-05f8-414a-a28e-5cc3e43ab578 fwd="40.121.92.251" dyno=web.1 connect=1ms service=596ms status=202 bytes=199 protocol=https
{ Error
at IncomingMessage.<anonymous> (/app/node_modules/apiai/module/json_api_request.js:59:25)
at emitNone (events.js:110:20)
at IncomingMessage.emit (events.js:207:7)
at endReadableNT (_stream_readable.js:1045:12)
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickCallback (internal/process/next_tick.js:180:9)
statusCode: 403,
responseBody: '{"status":{"code":401,"errorType":"unauthorized","errorDetails":"You are not authorized for this operation. Invalid access token"}}',
name: 'ServerError',
message: 'Wrong response status code.' }
Error
at IncomingMessage.<anonymous> (/app/node_modules/apiai/module/json_api_request.js:59:25)
at emitNone (events.js:110:20)
at IncomingMessage.emit (events.js:207:7)
at endReadableNT (_stream_readable.js:1045:12)
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickCallback (internal/process/next_tick.js:180:9)