如何解决React项目中的“npm ERR！缺少脚本：“dev”

Question

当我运行

npm run dev

时，它在终端中向我显示此错误：

npm ERR! Missing script: "dev"
npm ERR! 
npm ERR! To see a list of scripts, run:
npm ERR!   npm run

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/somrat/.npm/_logs/2023-12-10T20_37_20_228Z-debug-0.log

以下是日志文件详细信息：

0 verbose cli /usr/local/bin/node /usr/local/bin/npm
1 info using [email protected]
2 info using [email protected]
3 timing npm:load:whichnode Completed in 0ms
4 timing config:load:defaults Completed in 0ms
5 timing config:load:file:/usr/local/lib/node_modules/npm/npmrc Completed in 0ms
6 timing config:load:builtin Completed in 0ms
7 timing config:load:cli Completed in 1ms
8 timing config:load:env Completed in 0ms
9 timing config:load:project Completed in 1ms
10 timing config:load:file:/Users/somrat/.npmrc Completed in 2ms
11 timing config:load:user Completed in 2ms
12 timing config:load:file:/Users/somrat/Desktop/clothes_shop_backend/C:UsersmynameAppDataRoamingnpm/etc/npmrc Completed in 0ms
13 timing config:load:global Completed in 0ms
14 timing config:load:validate Completed in 0ms
15 timing config:load:credentials Completed in 1ms
16 timing config:load:setEnvs Completed in 1ms
17 timing config:load Completed in 9ms
18 timing npm:load:configload Completed in 9ms
19 timing npm:load:mkdirpcache Completed in 0ms
20 timing npm:load:mkdirplogs Completed in 0ms
21 verbose title npm run dev
22 verbose argv "run" "dev"
23 timing npm:load:setTitle Completed in 5ms
24 timing config:load:flatten Completed in 1ms
25 timing npm:load:display Completed in 3ms
26 verbose logfile logs-max:10 dir:/Users/somrat/.npm/_logs
27 verbose logfile /Users/somrat/.npm/_logs/2023-12-10T20_37_20_228Z-debug-0.log
28 timing npm:load:logFile Completed in 2ms
29 timing npm:load:timers Completed in 0ms
30 timing npm:load:configScope Completed in 0ms
31 timing npm:load Completed in 19ms
32 silly logfile start cleaning logs, removing 1 files
33 silly logfile done cleaning log files
34 timing command:run Completed in 3ms
35 verbose stack Error: Missing script: "dev"
35 verbose stack
35 verbose stack To see a list of scripts, run:
35 verbose stack   npm run
35 verbose stack     at RunScript.run (/usr/local/lib/node_modules/npm/lib/commands/run-script.js:97:13)
35 verbose stack     at async module.exports (/usr/local/lib/node_modules/npm/lib/cli.js:78:5)
36 verbose cwd /Users/somrat/Desktop/newproject
37 verbose Darwin 23.1.0
38 verbose node v16.15.1
39 verbose npm  v8.11.0
40 error Missing script: "dev"
40 error
40 error To see a list of scripts, run:
40 error   npm run
41 verbose exit 1
42 timing npm Completed in 27ms
43 verbose code 1
44 error A complete log of this run can be found in:
44 error     /Users/somrat/.npm/_logs/2023-12-10T20_37_20_228Z-debug-0.log

Answer 1

默认情况下，运行 React 应用程序的命令是

npm run start

，它在幕后运行

react-scripts start

。

如果出于某种原因您希望命令为

npm run dev

，您可以将

package.json

文件更改为：

"scripts": {
    "dev": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  },