UnhandledPromiseRejectionWarning: TypeError: Converting circular structure to JSON about hack2-qas HOT 2 OPEN

可以麻煩你附上詳細的 error message 嗎
不然也不知道是哪一行噴這個 error

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(node:2192) UnhandledPromiseRejectionWarning: TypeError: Converting circular structure to JSON
--> starting at object with constructor 'Topology'
| property 's' -> object with constructor 'Object'
| property 'sessionPool' -> object with constructor 'ServerSessionPool'
--- property 'topology' closes the circle
at JSON.stringify ()
at stringify (C:\Users\user\wp1101\hack2\node_modules\express\lib\response.js:1123:12)
at ServerResponse.json (C:\Users\user\wp1101\hack2\node_modules\express\lib\response.js:260:14)
at ServerResponse.send (C:\Users\user\wp1101\hack2\node_modules\express\lib\response.js:158:21)
at _callee$ (C:\Users\user\wp1101\hack2\server\routes/post.js:38:24)
at tryCatch (C:\Users\user\wp1101\hack2\node_modules\regenerator-runtime\runtime.js:63:40)
at Generator.invoke [as _invoke] (C:\Users\user\wp1101\hack2\node_modules\regenerator-runtime\runtime.js:293:22)
at Generator.next (C:\Users\user\wp1101\hack2\node_modules\regenerator-runtime\runtime.js:118:21)
at asyncGeneratorStep (C:\Users\user\wp1101\hack2\server\routes\post.js:16:103)
at _next (C:\Users\user\wp1101\hack2\server\routes\post.js:18:194)
(Use node --trace-warnings ... to show where the warning was created)
(node:2192) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:2192) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

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