TypeError [ERR_INVALID_ARG_TYPE]: The "data"argument must be of type string or an instance of Buffe

D:\code\JavaDance>gitbook init
info: create SUMMARY.md

TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received an instance of Promise

D:\code\JavaDance>node -v
v14.0.0

D:\code\JavaDance>node -v
v12.16.3

D:\code\JavaDance>gitbook init
info: create SUMMARY.md
info: initialization is finished

D:\code\JavaDance>

처음에 gitbook init를 실행하면서 계속 이 오류를 보고했는데 나중에 버전을 바꾸면 OK예요.