NPM【问题 01】npm i node-sass@4.14.1报错not found: python2及Cannot download问题处理

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1.问题

• gyp verb which failed Error: not found: python2

# 1.添加Python27的安装路径到环境变量
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2# 2.未按照配置的环境变量找到python2
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` succeeded python E:\anaconda3\envs\python.EXE

真实原因：

• Cannot download “https://github.com/sass/node-sass/releases/download/version/x.node”

Downloading binary from https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-83_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-83_binding.node"

2.处理

2.1 方案一【我的环境失败】

# npm设置国内地址
npm config set registry https://registry.npm.taobao.org/
npm config get registry

首先确认node的版本跟node-sass的版本是匹配的 https://github.com/sass/node-sass：

# 查询node版本
node -v# 查询结果
v14.17.0

{..."node-sass": "4.14.1","sass-loader": "8.0.2",...
}

解决方法，原文链接：https://blog.csdn.net/manonggeerdan/article/details/121260754：

# 1.删除工程的node_modules文件夹
# 2.以管理员身份打开dos窗口
# 3.安装node-gyp
npm install -g node-gyp
# 4.安装windows-build-tools
npm install --global --production windows-build-tools

这里可能出现的问题：
Visual Studio Build Tools一直处于“Still waiting for installer log file…”状态：

Status from the installers:
---------- Visual Studio Build Tools ----------
Still waiting for installer log file...
------------------- Python --------------------
Python 2.7.8 is already installed, not installing again.

【解决】不需要等待，直接ctrl+c停止，然后输入以下命令

npm install --global --production windows-build-tools --vs2015# 安装成功
Starting installation...
Launched installers, now waiting for them to finish.
This will likely take some time - please be patient!---------- Visual Studio Build Tools ----------
Successfully installed Visual Studio Build Tools.
------------------- Python --------------------
Python 2.7.8 is already installed, not installing again.Now configuring the Visual Studio Build Tools..All done!+ windows-build-tools@5.2.2
updated 1 package in 114.042s

然后再执行npm install。

2.2 方案二【成功】

直接下载安装，复制报错信息里的地址：

Cannot download "https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-83_binding.node"
# 使用腾讯的云服务器进行下载
wget https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-83_binding.node

虽然很慢但是最终下载成功了！然后执行以下命令进行安装：

npm i node-sass@4.14.1 --sass_binary_site=E:\yuanzheng-codebase\code-gitee-open\open_ruoyi_activiti\ruoyi-deploy\ -D

• -D 标志表示将 node-sass 安装为开发依赖项。

网盘文件分享：

链接：https://pan.baidu.com/s/1u72IgICc6EAlT4gAAr1gzg?pwd=bflf

2.3 方案三【成功】

npm i node-sass@4.14.1 --sass_binary_site=https://npm.taobao.org/mirrors/node-sass/ -D

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