Element: [Bug Report] get an error: Unknown custom element: <el-collapse-transition> while importing Menu/Submenu alone rather than importing all

[ryancui-]

Element UI version

1.3.0

OS/Browsers version

WIndows 10/Mac OS, Chrome 58

Vue version

2.3.2

Reproduction Link

https://github.com/ryancui-/vue-transition-issue

Steps to reproduce

1. npm i
2. npm run dev
3. visit http://localhost:8086

What is Expected?

The menu should has a transition effect as in version 1.2.9.

What is actually happening?

The transition disappeared and an warn message show in the console.

[Leopoldthecoder]

Fixed in #4728

[EmadAdly]

still problem in
"element-ui": "^1.4.0"
"vue": "^2.3.3"

[saenzramiro]

Same here!

[orionlu0916]

@EmadAdly, @saenzramiro try to remove "element-ui" in your "node_modules" folder, and reinstall this framework again with npm install element-ui

[EmadAdly]

thanks
fix it by update element-ui to 1.4.2

[saenzramiro]

@orionlu0916 Great! Works now on 1.4.2.

Thank you @Leopoldthecoder and @orionlu0916!