node.js - After setting up the vue environment in Alibaba Cloud, npm run dev did not see the vue welcome page but UnhandledPromiseRejection

Question

1. Set up a vue environment under Alibaba Cloud ubuntu, create a simple helloVue file, and then npm install, npm run dev. The following page will appear

2. Then visit Port 8080 shows that the web page cannot be accessed. Please help me find out how to solve this error, thank you

Answer 1

There is a problem with the code, there is an uncaught exception in the promise object.

Answer 2

I also encountered this problem~~