回送安装

Question

  

我已经安装了Loopbackjs，并且在尝试运行lb4时   命令它显示错误。

lb4: The term 'lb4' is not recognized as the name of a cmdlet,
> function, script file, or operable program. Check the spelling of the
> name, or if a path was  included, verify that the path is correct and
> try again. At line:1 char:1
> + lb4 app
> + ~~~
>     + CategoryInfo          : ObjectNotFound: (lb4:String) [], CommandNotFoundException
>     + FullyQualifiedErrorId : CommandNotFoundException  
> 
> lb4: The term 'lb4' is not recognized as the name of a cmdlet,
> function, script file, or operable program. Check the spelling of the
> name, or if a path was  included, verify that the path is correct and
> try again. At line:1 char:1
> + lb4 app
> + ~~~
>     + CategoryInfo          : ObjectNotFound: (lb4:String) [], CommandNotFoundException
>     + FullyQualifiedErrorId : CommandNotFoundException

Answer 1

CLI工具lb4随npm软件包@loopback/cli一起提供。您需要全局安装此软件包。参见Getting Started：

  

第2步

     

安装LoopBack 4 CLI

     

LoopBack 4 CLI是一个命令行界面，可以支持项目或扩展。 CLI提供了遵循最佳实践的LoopBack 4项目入门的最快方法。

$ npm install -g @loopback/cli

Answer 2

  

Blockquote   如果您遇到此类问题，请确保npm已全局安装。并检查节点是否已正确安装。