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fs.writeFile 오류
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// TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined
// at Object.writeFile (node:fs:2106:5)
// at /Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/app_file.js:51:6
// at Layer.handle [as handle_request] (/Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/layer.js:95:5)
// at next (/Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/route.js:137:13)
// at Route.dispatch (/Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/route.js:112:3)
// at Layer.handle [as handle_request] (/Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/layer.js:95:5)
// at /Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/index.js:281:22
// at Function.process_params (/Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/index.js:341:12)
// at next (/Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/express/lib/router/index.js:275:10)
// at /Users/sungjae/Desktop/likelion/project/웹메모장생활코딩/node_modules/body-parser/lib/read.js:130:5
현재 이러한 오류가 뜨고있는데, 많은 구글링에도 답을 찾지 못하고있습니다,,,,어떤 부분이 문제일까요??
nodejs
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