同一主机启动多个proxy报错

[tyyzqmf]

npm info it worked if it ends with ok
npm info using npm@4.1.2
npm info using node@v7.7.0
npm info lifecycle @~prestart: @
npm info lifecycle @~start: @

@ start /schemaui
dora -p 8901 --plugins "webpack,proxy?port=8988,browser-history?index=/src/entries/index.html"

      proxy: load rule from proxy.config.js

(node:23) DeprecationWarning: 'GLOBAL' is deprecated, use 'global'
proxy: listened on 8988
temp certs cleared
Generating RSA private key, 2048 bit long modulus
Caught exception: Error: watch /schemaui/package.json EMFILE
at exports._errnoException (util.js:1029:11)
at FSWatcher.start (fs.js:1399:19)
at Object.fs.watch (fs.js:1425:11)
at createFsWatchInstance (/schemaui/node_modules/.1.6.1@chokidar/lib/nodefs-handler.js:37:15)
at setFsWatchListener (/schemaui/node_modules/.1.6.1@chokidar/lib/nodefs-handler.js:80:15)
at FSWatcher.NodeFsHandler._watchWithNodeFs (/schemaui/node_modules/.1.6.1@chokidar/lib/nodefs-handler.js:228:14)
at FSWatcher.NodeFsHandler._handleFile (/schemaui/node_modules/.1.6.1@chokidar/lib/nodefs-handler.js:255:21)
at FSWatcher. (/schemaui/node_modules/.1.6.1@chokidar/lib/nodefs-handler.js:473:21)
at FSReqWrap.oncomplete (fs.js:114:15)
AnyProxy is about to exit with code: 0
............npm info lifecycle @~poststart: @
....npm info ok
+++
..

[tyyzqmf]

(node:23) DeprecationWarning: 'GLOBAL' is deprecated, use 'global'
怎么修改这个端口23？按道理是随机的吧？但是我发现启动两个都是23