error参数无效什么意思（Error: Can‘t find Python executable “python“, you can set the PYTHON env variable.解决办法）

😦电脑磕坏了

   最近把公司给的mac屏幕给磕坏了
  
  
  
  
  
  
  ，换成自己的macbookpro  
  
  
  
  
  
  
，本来想用时间机器做个无缝衔接
 


 


 


 


 


 


 

，结果发现不能用了
 
 
 
 
 
 
 ，跟客服沟通被告知macos版本在11以上不支持时间机器系统迁移   
   
   
   
   
   
   
，只能使用迁移助理做数据备份
 

 

 

 

 

 

 
，非常痛苦！！！要重新安装各种环境

 

 

 

 

 

 

 ，各种软件！！！！😤😤😤😤😤

🌟🌟🌟努力安装软件

   安装了很多开发常用的工具              ，就不一一罗列了
  
  
  
  
  
  
  。还有各种环境配置
 
 

 
 

 
 

 
 

 
 

 
 

 
 
，经过两天的时间













，差不多达到了以前环境的80%                     ，还有一些细节需要优化 
 
 
 
 
 
 
 
 
 
 
 
 
 
，工欲善其事




















，必先利其器  
  
  
  
  
  
  
。

   于是我开始跑前端项目              ，安装完了nodejs  
 
  
 
  
 
  
 
  
 
  
 
  
 
，当我用npm i编译时













，给我来了一大段报错 gyp ERR! stack Error: Cant find Python executable "python", you can set the PYTHON env variable. gyp ERR! stack at PythonFinder.failNoPython (/Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/node-gyp/lib/configure.js:484:19) gyp ERR! stack at PythonFinder.<anonymous> (/Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/node-gyp/lib/configure.js:406:16) gyp ERR! stack at F (/Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/which/which.js:68:16) gyp ERR! stack at E (/Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/which/which.js:80:29) gyp ERR! stack at /Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/which/which.js:89:16 gyp ERR! stack at /Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/isexe/index.js:42:5 gyp ERR! stack at /Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/isexe/mode.js:8:5 gyp ERR! stack at FSReqCallback.oncomplete (fs.js:192:21) gyp ERR! System Darwin 21.5.0 gyp ERR! command "/usr/local/bin/node" "/Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library=" gyp ERR! cwd /Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/node-sass gyp ERR! node -v v14.17.3 gyp ERR! node-gyp -v v3.8.0 gyp ERR! not ok Build failed with error code: 1 npm WARN @babel/plugin-proposal-class-static-block@7.18.0 requires a peer of @babel/core@^7.12.0 but none is installed. You must install peer dependencies yourself. npm WARN @babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining@7.17.12 requires a peer of @babel/core@^7.13.0 but none is installed. You must install peer dependencies yourself. npm WARN @babel/helper-define-polyfill-provider@0.2.4 requires a peer of @babel/core@^7.4.0-0 but none is installed. You must install peer dependencies yourself. npm WARN @babel/helper-define-polyfill-provider@0.3.1 requires a peer of @babel/core@^7.4.0-0 but none is installed. You must install peer dependencies yourself. npm WARN diboot-element-admin@2.3.1 No repository field. npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! node-sass@4.14.1 postinstall: `node scripts/build.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the node-sass@4.14.1 postinstall script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! /Users/scott/.npm/_logs/2022-06-08T09_20_09_286Z-debug.log scott@ScottdeMacBook-Pro workflow-frontend-elem % npm install --save-dev node-sass npm WARN deprecated tar@2.2.2: This version of tar is no longer supported, and will not receive security updates. Please upgrade asap. > node-sass@4.14.1 install /Users/scott/project/dx_project/front_project/workflow-frontend-elem/node_modules/node-sass > node scripts/install.js Downloading binary from https://github.com/sass/node-sass/releases/download/v4.14.1/darwin-x64-83_binding.node

发现一段错误提示Error: Can‘t find Python executable “python“, you can set the PYTHON env variable,这提示貌也很明显
  
  
  
  
  
  
  ，告诉我们没有python  
  
  
  
  
  
  
，我在终端检查了一下果然没有
 


 


 


 


 


 


 

。

我记得macos是自带python2.7的
 


 


 


 


 


 


 

，于是我查阅了一下资料
 
 
 
 
 
 
 ，发现Moterey这个版本的操作系统移出了python,需要自己去安装
 
 
 
 
 
 
 。好吧   
   
   
   
   
   
   
，认命
 

 

 

 

 

 

 
，我装   
   
   
   
   
   
   
。

于是我开始使用homebrew安装python3.X
 

 

 

 

 

 

 
。 # 命令大概是这样子 brew install python3 brew link python3

细心的我观察到报错时调用的是’python’命令,于是在.bash_profile中增加了别名配置

alias python3=/usr/bin/python3 alias python=python3 alias python2=python3

满心欢喜继续执行npm i 进行编译项目

 

 

 

 

 

 

 ，结果还是报错😫😫😫              ，不过细心的我肯定会注意到这一句提示Downloading binary from https://github.com/sass/node-sass/releases/download/v4.14.1/darwin-x64-83_binding.node,这个node-saas从github去拉
 
 

 
 

 
 

 
 

 
 

 
 

 
 
，没有拉下来

 

 

 

 

 

 

 。我不是已经改过了镜像源了么













，于是我又查阅了一些资料              。于是乎查到了一个命令
 
 

 
 

 
 

 
 

 
 

 
 

 
 
。

👊👊终极解决方案

没错                     ，我们需要改变它的下载地址👏👏 
 
 
 
 
 
 
 
 
 
 
 
 
 
，通过下面这个命令把下载地址改为淘宝镜像













。

npm config set sass_binary_site=https://npm.taobao.org/mirrors/node-sass

可以看到已经下载好了




















，这时候我们就可以正常的npm install了              ，所以有时候遇到问题不要慌  
 
  
 
  
 
  
 
  
 
  
 
  
 
，这个解决不了













，那么就先解决下一个                     。🏃🏃只要你跑的够快
  
  
  
  
  
  
  ，bug就追不上你 
 
 
 
 
 
 
 
 
 
 
 
 
 
。

点赞收藏  
  
  
  
  
  
  
，富婆包养