NPM run dev error Error:listenEADDRNOTAVAIL [How to Solve]

When running vue2.0 project with NPM run dev command,
half of the project is built with Vue cli scaffold

Error: listen EADDRNOTAVAIL 192.168.137.1:9090

The project cannot run,

Error report screenshot:

Error reason: static routing information in configuration has been changed

solution:
Open Directory/ index.js

 host: 'localhost',//Unchanged is filled in 192.168.137.1:9090  

If you need to access Vue project on your mobile phone, you can open the following link:
how to access Vue project on your mobile phone

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