启动angular项目时，一直启动不起来，报以下错误，node版本也没有问题，查看是环境变量的问题。
(node:61471) [DEP0111] DeprecationWarning: Access to process.binding('http_parser') is deprecated.
(Use `node --trace-deprecation ...` to show where the warning was created)
ℹ ｢wds｣: Project is running at http://127.0.0.1:4200/webpack-dev-server/
ℹ ｢wds｣: webpack output is served from /
ℹ ｢wds｣: 404s will fallback to //index.html
10% building 4/5 modules 1 active /Users/wangxiaoya/abs-web/abs-web/node_modules/webpack-dev-server/client/index.js?http://0.0.0.0:0/sockjs-node&sockPath=/sockjs-nodenode:internal/crypto/hash:69
this[kHandle] = new _Hash(algorithm, xofLen);
^
Error: error:0308010C:digital envelope routines::unsupported
解决方法:
在terminal执行以下两行指令，设置一下环境变量，重新运行angular项目即可
export NODE_OPTIONS=--openssl-legacy-provider
set NODE_OPTIONS=--openssl-legacy-provider
然后再重新运行即可解决
