'vue' is not recognized as an internal or external command的一种解决方

（认知有限，如有不妥，还望告知，欢迎讨论。）

问题产生情景

执行vue upgrade是发生的报错

'vue' is not recognized as an internal or external command

解决方法

执行

 npm install -g @vue/cli

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=reference=

[1] https://bobbyhadz.com/blog/not-recognized-as-internal-or-external-command-vue#:~:text=Conclusion%20%23,variable%20is%20set%20up%20correctly.