错误信息
D:\git\blog>vue ui
D:\git\blog>vue help ui
internal/modules/cjs/loader.js:969
throw err;
^
Error: Cannot find module 'D:\git\blog\vue-ui'
�[90m at Function.Module._resolveFilename (internal/modules/cjs/loader.js:966:15)�[39m
�[90m at Function.Module._load (internal/modules/cjs/loader.js:842:27)�[39m
�[90m at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)�[39m
�[90m at internal/main/run_main_module.js:17:47�[39m {
code: �[32m'MODULE_NOT_FOUND'�[39m,
requireStack: []
}
检查
D:\git\blog>vue -h
Usage: vue <command> [options]
Options:
-V, --version output the version number
-h, --help output usage information
Commands:
init generate a new project from a template
list list available official templates
build prototype a new project
create (for v3 warning only)
help [cmd] display help for [cmd]
发现并没有ui的命令，于是想到可能vue-cli未安装成功，所以需要重新安装vue-cli
npm install -g @vue/cli
或
cnpm install -g @vue/cli
安装完成后，再次查看命令
D:\git\blog>vue -h
Usage: vue <command> [options]
Options:
-V, --version output the version number
-h, --help output usage information
Commands:
create [options] <app-name> create a new project powered by vue-cli-service
add [options] <plugin> [pluginOptions] install a plugin and invoke its generator in an already created project
invoke [options] <plugin> [pluginOptions] invoke the generator of a plugin in an already created project
inspect [options] [paths...] inspect the webpack config in a project with vue-cli-service
serve [options] [entry] serve a .js or .vue file in development mode with zero config
build [options] [entry] build a .js or .vue file in production mode with zero config
ui [options] start and open the vue-cli ui
init [options] <template> <app-name> generate a project from a remote template (legacy API, requires @vue/cli-init)
config [options] [value] inspect and modify the config
outdated [options] (experimental) check for outdated vue cli service / plugins
upgrade [options] [plugin-name] (experimental) upgrade vue cli service / plugins
migrate [options] [plugin-name] (experimental) run migrator for an already-installed cli plugin
info print debugging information about your environment
Run vue <command> --help for detailed usage of given command.
发现已经有ui命令了，执行命令如下：
D:\git\blog>vue ui
� Starting GUI...
� Ready on http://localhost:8000
综上所述，说明未正确安装vue-cli，重新安装后，一切正常。
