报错：
(node:35280) 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 .caton without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:35280) [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. will terminate the Node.js process with a non-zero exit code.
还遇到过的报错：
{ parser: “babylon” } is deprecated; we now treat it as { parser: “babel” }.
UnhandledPromiseRejectionWarning: TypeError
[ERR_INVALID_ARG_TYPE]: The “path” argument must be of type string. Received type undefined
使用的版本：
"node-sass": "^5.0.0",
"sass-loader": "^10.1.0",
把版本降级：
"node-sass": "^4.14.1",
"sass-loader": "^7.0.3",
就解决了
但我其实不懂为什么这样可以解决