[BUG] `npm run dev` result in 'rollup' is not recognized as an internal or external command

[picasso250]

Current Behavior:

when run npm run dev

E:\picasso250\mathjsui>npm run dev --verbose
npm verb cli [
npm verb cli   'E:\\Program Files\\nodejs\\node.exe',
npm verb cli   'C:\\Users\\xiaochi\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js',
npm verb cli   'run',
npm verb cli   'dev',
npm verb cli   '--verbose'
npm verb cli ]
npm info using npm@7.8.0
npm info using node@v14.16.0
npm timing npm:load:whichnode Completed in 2ms
npm timing config:load:defaults Completed in 2ms
npm timing config:load:file:C:\Users\xiaochi\AppData\Roaming\npm\node_modules\npm\npmrc Completed in 1ms
npm timing config:load:builtin Completed in 1ms
npm timing config:load:cli Completed in 2ms
npm timing config:load:env Completed in 0ms
npm timing config:load:file:E:\picasso250\mathjsui\.npmrc Completed in 0ms
npm timing config:load:project Completed in 1ms
npm timing config:load:file:C:\Users\xiaochi\.npmrc Completed in 1ms
npm timing config:load:user Completed in 1ms
npm timing config:load:file:C:\Users\xiaochi\AppData\Roaming\npm\etc\npmrc Completed in 0ms
npm timing config:load:global Completed in 0ms
npm timing config:load:validate Completed in 2ms
npm timing config:load:setEnvs Completed in 1ms
npm timing config:load Completed in 10ms
npm timing npm:load:configload Completed in 11ms
npm timing npm:load:setTitle Completed in 0ms
npm timing npm:load:setupLog Completed in 2ms
npm timing npm:load:cleanupLog Completed in 2ms
npm timing npm:load:configScope Completed in 0ms
npm timing npm:load:projectScope Completed in 1ms
npm timing npm:load Completed in 30ms
npm timing config:load:flatten Completed in 2ms
[..................] | : timing config:load:flatten Completed in 2ms
> svelte-app@1.0.0 dev
> rollup -c -w

'rollup' is not recognized as an internal or external command,
operable program or batch file.
npm timing command:run-script Completed in 24ms
npm verb exit 1
npm timing npm Completed in 268ms
npm verb code 1

or if you are Chinese, it shows:

'rollup' 不是内部或外部命令，也不是可运行的程序
或批处理文件。

Expected Behavior:

run npm run dev

it run the script without complain.

Steps To Reproduce:

1. clone a repo(svelte-app for example) or make a package.json with it's own script
2. Run 'npm run dev' or other script
3. See error

Environment:

• OS: Win10
• Node: 14.16.0
• npm: 7.8.0

reason

it is not about rollup, it's about npm sending wrong args to windows cmd

currently, npm do this:

spawn('cmd', [
    "/d /s /c",
    "rollup -c -w",
], options);

windows complains.

but if you send this:

spawn('cmd', [
    "/d /s /c",
    "rollup.cmd", "-c", "-w", // add '.cmd' 
],options);

windows will find it in './node_modules/.bin'

a fix

replace node_modules\@npmcli\run-script\lib\make-spawn-args.js:18 with

  // const args = isCmd ? ['/d', '/s', '/c', cmd] : ['-c', cmd]
  const cmdArray = cmd.split(" ")
  if (isCmd) {
    if (cmdArray.length > 0) {
      const cmdProg = cmdArray[0]
      if (/^\w+$/.test(cmdProg)) {
        cmdArray[0] = cmdProg + ".cmd"
      }
    }
  }
  const args = isCmd ? ['/d', '/s', '/c',].concat(cmdArray) : ['-c', cmd]

of course it is not a "correct" fix, but it works for most scripts.

[nlf]

we can't change the command name because not everything passed to a script will be something that was installed by npm and will exist with a .cmd extension, so by adding it implicitly we would break a lot of workflows.

it is somewhat unusual that your command isn't running, seeing as windows supports running commands without the .cmd extension implicitly. is rollup.cmd located in your project's node_modules/.bin directory?

[picasso250]

yes, it is. the file exists.

PS E:\picasso250\mathjsui\node_modules\.bin> ls

    目录: E:\picasso250\mathjsui\node_modules\.bin

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----          2021/4/2      2:14            342 livereload
-a----          2021/4/2      2:14            288 livereload.cmd
-a----          2021/4/2      2:14            512 livereload.ps1
-a----          2021/4/2      6:10            302 mathjs
-a----          2021/4/2      6:10            322 mathjs.cmd
-a----          2021/4/2      6:10            793 mathjs.ps1
-a----          2021/4/2      2:14            308 mime
-a----          2021/4/2      2:14            271 mime.cmd
-a----          2021/4/2      2:14            478 mime.ps1
-a----          2021/4/2      2:14            330 rollup
-a----          2021/4/2      2:14            282 rollup.cmd
-a----          2021/4/2      2:14            500 rollup.ps1
-a----          2021/4/2      2:14            316 sirv
-a----          2021/4/2      2:14            275 sirv.cmd
-a----          2021/4/2      2:14            486 sirv.ps1
-a----          2021/4/2      2:14            320 terser
-a----          2021/4/2      2:14            277 terser.cmd
-a----          2021/4/2      2:14            490 terser.ps1

the rollup without .cmd is the bash file, which is installed by default.

I tried cmd and powershell, they are the same on that problem.

[darcyclarke]

@picasso250 does this work in v6? From our testing, we can't seem to replicate... can you also ensure you're using the latest v7 (ie. npm i -g npm)

[doonv]

SEE BELOW | This happened to me too. Is there a way around this?

EDIT: I forgot to install the node modules by doing npm i. I'm stupid lol

[Secret1007]

This is happened to me again