npm WARN deprecated browserslist@2.11.3: Browserslist 2 could fail on reading Browserslist >3
.0 config used in other tools.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
npm WARN deprecated bfj-node4@5.3.1: Switch to the `bfj` package for fixes and new features!
npm WARN deprecated json3@3.3.2: Please use the native JSON object instead of JSON 3? ? ? ?
npm WARN deprecated flatten@1.0.2: I wrote this module a very long time ago; you should use s
omething else.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
npm WARN deprecated browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.
0 config used in other tools.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
npm WARN deprecated circular-json@0.3.3: CircularJSON is in maintenance only, flatted is its
successor.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
npm WARN deprecated socks@1.1.10: If using 2.x branch, please upgrade to at least 2.1.6 to av
oid a serious bug with socket data flow and an import issue introduced in 2.1.0? ? ? ? ??
解決方法：
npm i?browserslist
