无法在 EC2 上使用 npm 安装 bcrypt答案

【问题标题】：Impossible to install bcrypt with npm on EC2无法在 EC2 上使用 npm 安装 bcrypt
【发布时间】：2015-05-20 03:53:07
【问题描述】：

在 Amazon EC2 实例上的 Ubuntu Server 14.04 上，我在执行 npm install 时出错。它未能安装 bcrypt（"bcrypt": "^0.8.1"in 我的package.json）。

这是我遇到的错误：

> bcrypt@0.8.1 install /home/ubuntu/app/node_modules/bcrypt
> node-gyp rebuild

child_process: customFds option is deprecated, use stdio instead.
make: Entering directory `/home/ubuntu/app/node_modules/bcrypt/build'
  CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
make: g++: Command not found
make: *** [Release/obj.target/bcrypt_lib/src/blowfish.o] Error 127
make: Leaving directory `/home/ubuntu/app/node_modules/bcrypt/build'
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/home/ubuntu/node-v0.12.0-linux-x64/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:267:23)
gyp ERR! stack     at ChildProcess.emit (events.js:110:17)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:1067:12)
gyp ERR! System Linux 3.13.0-44-generic
gyp ERR! command "node" "/home/ubuntu/node-v0.12.0-linux-x64/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/ubuntu/app/node_modules/bcrypt
gyp ERR! node -v v0.12.0
gyp ERR! node-gyp -v v1.0.2
gyp ERR! not ok

【问题讨论】：

标签： node.js amazon-web-services amazon-ec2 npm

【解决方案1】：

我只需要安装构建工具sudo apt-get install build-essential g++

请注意，您必须apt-get update 以避免 apt-get 在 EC2 上出现任何问题（否则您最终可能会遇到 E: Failed to fetch…

然后再次npm install，您就可以开始了！

【讨论】：

【解决方案2】：

通过使用 gcc 4.4 安装和编译来修复，如下所示：

yum install gcc44 gcc44-c++
export CC="gcc44"
export CXX="g++44"
npm install -g level

参考：Level/levelup#224

【讨论】：

【解决方案3】：

我最终在.ebextensions 文件夹中创建了一个00npm.config 文件。这将清除文件夹、设置环境变量并尝试再次构建。

文件是：

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/pre/50npm.sh" :
    mode: "000775"
    owner: root
    group: root
    content: |
      #!/bin/bash
      #==============================================================================
      # Copyright 2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
      #
      # Licensed under the Amazon Software License (the "License"). You may not use
      # this file except in compliance with the License. A copy of the License is
      # located at
      #
      #       http://aws.amazon.com/asl/
      #
      # or in the "license" file accompanying this file. This file is distributed on
      # an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or
      # implied. See the License for the specific language governing permissions
      # and limitations under the License.
      #==============================================================================

      export HOME=/home/ec2-user
      export USERPROFILE=/home/ec2-user

      sudo rm -rf /tmp/deployment/application/node_modules/bcrypt

      set -xe

      /opt/elasticbeanstalk/containerfiles/ebnode.py --action npm-install

【讨论】：