How to solve npm ERR! missing script: dev

Question

I have installed node.js. Next, I installed cnmp with command

npm install -g cnpm --registry=https://registry.npm.taobao.org cnpm install

when I tried command cnpm run dev there is a error:

npm ERR! path C:\Users\Harry\package.json npm ERR! code ENOENT npm ERR! errno -4058 npm ERR! syscall open npm ERR! enoent ENOENT: no such file or directory, open 'C:\Users\Harry\package.json' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\Harry\AppData\Roaming\npm-cache\_logs\2018-08-03T02_48_22_663Z-debug.log

so I moved the package.json from C:\Users\Harry\AppData\Roaming\npm\node_modules\cnpm to 'C:\Users\Harry\package.json' but I still got an error:

npm ERR! missing script: dev npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\Harry\AppData\Roaming\npm-cache\_logs\2018-08-03T02_51_46_194Z-debug.log

and I also tried methods of similar problems, such as edit the script in package.json, it still doesn't work.

After moving package.json, you will need to run cnpm install again — Phil
– Phil, Commented Aug 3, 2018 at 3:14
Did you check if your your package.json actually contains a scripts section with a dev command? — r0skar
– r0skar, Commented Aug 3, 2018 at 9:55
"scripts": { "test": "npm run lint -- --fix && npm run test-local", "test-local": "egg-bin test", "lint": "eslint bin lib test/*.js", "ci": "npm run lint && npm run test", "autod": "autod" }, it doesn't contain dev in scripts — Harrymissu
– Harrymissu, Commented Aug 3, 2018 at 17:12

BigJoeNH · Accepted Answer · 2018-10-08 00:51:16Z

Perhaps you are using the Vue CLI 3? If yes, there is no "dev" build script. Earlier versions of the Vue 2 boilerplate project had a "dev" script - but no longer.

Instead use the "serve" script and your Vue project will run as dev

npm run serve

See the scripts that are configured with Vue CLI 3 in the package.json file

"scripts": { "serve": "vue-cli-service serve", "build": "vue-cli-service build", "lint": "vue-cli-service lint" },

Hope that solves your issue.

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