??電腦磕壞了

? ?最近把公司給的mac屏幕給磕壞了，換成自己的macbookpro，本來想用時間機(jī)器做個無縫銜接，結(jié)果發(fā)現(xiàn)不能用了，跟客服溝通被告知macos版本在11以上不支持時間機(jī)器系統(tǒng)遷移，只能使用遷移助理做數(shù)據(jù)備份，非常痛苦！??！要重新安裝各種環(huán)境，各種軟件?。。?！??????????

??????努力安裝軟件

? ?安裝了很多開發(fā)常用的工具，就不一一羅列了。還有各種環(huán)境配置，經(jīng)過兩天的時間，差不多達(dá)到了以前環(huán)境的80%，還有一些細(xì)節(jié)需要優(yōu)化，工欲善其事，必先利其器。
? ?于是我開始跑前端項目，安裝完了nodejs，當(dāng)我用npm i編譯時，給我來了一大段報錯

gyp ERR! stack Error: Can't 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

發(fā)現(xiàn)一段錯誤提示Error: Can‘t find Python executable “python“, you can set the PYTHON env variable,這提示貌也很明顯，告訴我們沒有python，我在終端檢查了一下果然沒有。
我記得macos是自帶python2.7的，于是我查閱了一下資料，發(fā)現(xiàn)Moterey這個版本的操作系統(tǒng)移出了python,需要自己去安裝。好吧，認(rèn)命，我裝。
于是我開始使用homebrew安裝python3.X。

# 命令大概是這樣子
brew install python3
brew link python3

細(xì)心的我觀察到報錯時調(diào)用的是’python’命令,于是在.bash_profile中增加了別名配置

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

滿心歡喜繼續(xù)執(zhí)行npm i 進(jìn)行編譯項目，結(jié)果還是報錯??????，不過細(xì)心的我肯定會注意到這一句提示Downloading binary from https://github.com/sass/node-sass/releases/download/v4.14.1/darwin-x64-83_binding.node,這個node-saas從github去拉，沒有拉下來。我不是已經(jīng)改過了鏡像源了么，于是我又查閱了一些資料。于是乎查到了一個命令。

????終極解決方案

沒錯，我們需要改變它的下載地址????，通過下面這個命令把下載地址改為淘寶鏡像。

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

可以看到已經(jīng)下載好了，這時候我們就可以正常的npm install了，所以有時候遇到問題不要慌，這個解決不了，那么就先解決下一個。????只要你跑的夠快，bug就追不上你。
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