我对此有疑问
1创建一个AWS EC2实例，
2连接SSH和
使用npm命令安装3个软件包， 但是在第三步，我收到一条错误消息。
[ec2-user@ip-172-31-45-159 ~]$ sudo npm install -g forever
npm http GET https://registry.npmjs.org/forever
npm http GET https://registry.npmjs.org/forever
npm http GET https://registry.npmjs.org/forever //during 3 lines takes a few minutes. also wonder why it takes time in this line
npm ERR! Error: UNABLE_TO_GET_ISSUER_CERT_LOCALLY //errormessage
npm ERR! at SecurePair.<anonymous> (tls.js:1430:32)
npm ERR! at SecurePair.emit (events.js:92:17)
npm ERR! at SecurePair.maybeInitFinished (tls.js:1029:10)
npm ERR! at CleartextStream.read [as _read] (tls.js:521:13)
npm ERR! at CleartextStream.Readable.read (_stream_readable.js:341:10)
npm ERR! at EncryptedStream.write [as _write] (tls.js:418:25)
npm ERR! at doWrite (_stream_writable.js:226:10)
npm ERR! at writeOrBuffer (_stream_writable.js:216:5)
npm ERR! at EncryptedStream.Writable.write (_stream_writable.js:183:11)
npm ERR! at write (_stream_readable.js:602:24)
npm ERR! If you need help, you may report this log at:
npm ERR! <http://github.com/isaacs/npm/issues>
npm ERR! or email it to:
npm ERR! <npm-@googlegroups.com>
npm ERR! System Linux 4.14.154-99.181.amzn1.x86_64
npm ERR! command "node" "/usr/bin/npm" "install" "-g" "forever"
npm ERR! cwd /home/ec2-user
npm ERR! node -v v0.10.48
npm ERR! npm -v 1.3.6
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /home/ec2-user/npm-debug.log
npm ERR! not ok code 0
我检查了其他npm软件包，但它们发送相同的错误。我认为问题与https://registry.npmjs.org有关。请帮助;（
P.S。目的是建立一个Web服务器AMI（建立网站的步骤之一）
P.S.2我发现其他人可以解决相同错误的2种方法，其中一种对安全性不利。但这是我个人的项目，关于安全性并不那么重要。所以我已经用过命令 'npm config setstrict-ssl = false'和 “ npm配置集注册表https://registry.npmjs.org/” 但是他们没有用，什么也没变。