IDEA的npm报错Local package.json exists, but node_modules missing, did you mean to install?

ゝ一世哀愁。 2023-02-21 04:56 8阅读 0赞

# npm报错Local package.json exists, but node\_modules missing, did you mean to install? #

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## 问题现象: ##

今天在使用nodejs项目中配置的npm去启动项目时,出现报错,如下图:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70][]

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## 问题分析: ##

从报错信息就可以很明确的知道报错的原因了,因为vue-cli脚手架没有安装,再者说就是IDEA缺少了npm插件.

所以根据报错信息,进行安装就好了,不过这里有一个坑!

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## 解决方法: ##

在IDEA的terminal命令窗口处,输入命令: **cnpm install**

**这里强烈推荐使用cnpm 而不是 npm ,**因为npm访问的是国外服务器资源,**下载速度超慢,容易失败!**

而**cnpm** 访问的是国内的淘宝镜像库资源,**下载速度快,基本不会失败!**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 1][]

记得配置npm,举例如下:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 2][]

再重新启动项目,(启动成功的话就是**转向箭头图标**,启动失败或者未启动过就是**三角形播放图标**)

![20200628174519197.png][]

启动成功后,会在run控制台窗口看见,类似如下信息:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 3][]

至此,项目启动成功!

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200628173528465.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200628174232899.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200628174555703.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng==,size_16,color_FFFFFF,t_70
[20200628174519197.png]: https://img-blog.csdnimg.cn/20200628174519197.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200628174844376.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng==,size_16,color_FFFFFF,t_70