執行react專案,npm run start/build, 報錯 There might be a problem with the project dependency tree. It is likely not a bug in Create React App, but something you need to fix locally.
阿新 • • 發佈:2020-07-15
如題:這個問題困擾了我半天,網上搜索各種解決方法,都沒能解決,最後仔細讀一遍原因才發現問題很簡單,就是版本不一致
為啥不一樣,哪裡有兩個相同的依賴呢,請看下文:
There might be a problem with the project dependency tree. It is likely not a bug in Create React App, but something you need to fix locally. The react-scripts package provided by Create React App requires a dependency:"webpack": "4.19.1" Don't try to install it manually: your package manager does it automatically. However, a different version of webpack was detected higher up in the tree: E:\company_work\wbwork\zabbix2\node_modules\webpack (version: 3.10.0) Manually installing incompatible versions is known to cause hard-to-debug issues.
報錯如上所示,不一定是webpack,還是其他依賴檔案版本衝突,如babel-eslint, babel-loader, webpack-dev-server等等,
這個版本衝突是因為react-scripts中重新依賴了一套相同的,坑爹呀,react自行依賴一套了,結果版本不一致導致的。
怎樣看你的專案中是否有相同的依賴
npm ls webpack
如上指令,webpack 可以換成任何同樣報錯的依賴名稱即可查詢
結果:
$ npm ls webpack adminstock@0.1.0 E:\GitLab\adminstock\web +-- [email protected] | `-- [email protected] `-- [email protected]
看到了吧,react-scripts 還有相同的一套webapck,但是版本不一樣。
要怎麼改,其實很簡單,
在package.json中,找到react-scirpts,將他的版本號前面的 ^ 這個符號刪掉,然後重新npm install 一下就可以了
^ 符號標識最新版本,不是指你當前寫的版本,大坑呀。
不信的話,你npm install 完,再執行一下
npm ls webpack 檢查版本是不是一樣
$ npm ls webpack
[email protected] E:\GitLab\adminstock\web
+-- [email protected]
| `-- [email protected] deduped
`-- [email protected]
完美解決, 親測