bash: create-react-app: command not found

1、エラーの説明

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ npm install create-react-app
npm WARN saveError ENOENT: no such file or directory, open 'D:\HBuilderProjects\                                cmn\package.json'
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN enoent ENOENT: no such file or directory, open 'D:\HBuilderProjects\cmn                                \package.json'
npm WARN cmn No description
npm WARN cmn No repository field.
npm WARN cmn No README data
npm WARN cmn No license field.

+ [email protected]
added 91 packages from 45 contributors and audited 179 packages in 93.018s
found 0 vulnerabilities


Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ create-react-app wdm
bash: create-react-app: command not found

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ npm install -g create-react-app
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\ansi-styles
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\escape-string-regexp
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\strip-ansi
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\supports-color
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\chalk
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\tmp
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\envinfo
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\fs-extra
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\semver
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\validate-npm-package-nam                                e
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\commander
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\cross-spawn
npm ERR! path C:\Users\Administrator\AppData\Roaming
pm
ode_modules\create-rea                                ct-app
ode_modules\ansi-styles
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall access
npm ERR! enoent ENOENT: no such file or directory, access 'C:\Users\Administrato                                r\AppData\Roaming
pm
ode_modules\create-react-app
ode_modules\ansi-styles'
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\Administrator\AppData\Roaming
pm-cache\_logs\2019-05-22T1                                5_22_06_708Z-debug.log

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ create-react-app wdm
bash: create-react-app: command not found

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ npm install -g create-react-app
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\ansi-styles
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\escape-string-regexp
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\strip-ansi
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\supports-color
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\chalk
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\tmp
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\commander
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\cross-spawn
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\envinfo
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\fs-extra
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\semver
npm WARN checkPermissions Missing write access to C:\Users\Administrator\AppData                                \Roaming
pm
ode_modules\create-react-app
ode_modules\validate-npm-package-nam                                e
npm ERR! path C:\Users\Administrator\AppData\Roaming
pm
ode_modules\create-rea                                ct-app
ode_modules\ansi-styles
npm ERR! code ENOENT
npm ERR! errno -4058
npm ERR! syscall access
npm ERR! enoent ENOENT: no such file or directory, access 'C:\Users\Administrato                                r\AppData\Roaming
pm
ode_modules\create-react-app
ode_modules\ansi-styles'
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\Administrator\AppData\Roaming
pm-cache\_logs\2019-05-22T1                                5_31_20_307Z-debug.log

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ create-react-app wdm
bash: create-react-app: command not found

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$

2、エラーの原因
create-react-appは内部コマンドではありませんが、npxコマンドを使用してインストールできます.npx create-react-app
3、解決方法

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ cnpm install create-react-app

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ create-react-app cmn
bash: create-react-app: command not found

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn
$ npx create-react-app cmn

Creating a new React app in D:\HBuilderProjects\cmn\cmn.

Installing packages. This might take a couple of minutes.
Installing react, react-dom, and react-scripts...

yarn add v1.13.0
[1/4] Resolving packages...
info There appears to be trouble with your network connection. Retrying...
warning react-scripts > [email protected]: Please update: there are crash fixes
[2/4] Fetching packages...
info There appears to be trouble with your network connection. Retrying...
info [email protected]: The platform "win32" is incompatible with this module.
info "[email protected]" is an optional dependency and failed compatibility check.                                 Excluding it from installation.
info [email protected]: The platform "win32" is incompatible with this module.
info "[email protected]" is an optional dependency and failed compatibility check.                                 Excluding it from installation.
info [email protected]: The engine "node" is incompatible with this module. Expecte                                d version "^8.16.0 || ^10.6.0 || >=11.0.0". Got "10.3.0"
[3/4] Linking dependencies...
warning "react-scripts > @typescript-eslint/[email protected]" has unmet peer                                 dependency "typescript@*".
warning "react-scripts > @typescript-eslint/[email protected]" has unmet peer depende                                ncy "typescript@*".
warning "react-scripts > @typescript-eslint/eslint-plugin > @typescript-eslint/t                                [email protected]" has unmet peer dependency "typescript@*".
warning "react-scripts > @typescript-eslint/eslint-plugin > [email protected]" has                                 unmet peer dependency "typescript@>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >=                                 3.4.0-dev".
[4/4] Building fresh packages...
success Saved lockfile.
success Saved 11 new dependencies.
info Direct dependencies
├─ [email protected]
├─ [email protected]
└─ [email protected]
info All dependencies
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
├─ [email protected]
└─ [email protected]
Done in 271.09s.

Initialized a git repository.

Success! Created cmn at D:\HBuilderProjects\cmn\cmn
Inside that directory, you can run several commands:

  yarn start
    Starts the development server.

  yarn build
    Bundles the app into static files for production.

  yarn test
    Starts the test runner.

  yarn eject
    Removes this tool and copies build dependencies, configuration files
    and scripts into the app directory. If you do this, you can’t go back!

We suggest that you begin by typing:

  cd cmn
  yarn start

Happy hacking!

Administrator@SKY-20160824VTF MINGW64 /d/HBuilderProjects/cmn