Uncaught TypeError: Super expression must either be null or a function, not undefined

[zhuyinjing]

hello,
recently,i use a plugin in my project.
And this plugin depend on preact
and when i import it to my project
it shows error in chrome console,it shows Uncaught TypeError: Super expression must either be null or a function, not undefined
and my project is using vue.js
how should i do?
thanks a lot!!!

[developit]

Need more information in order to know what's going on here - how are you using preact and vue at the same time?

[developit]

It seems like your build is not resolving the Component class from preact. This may simply be due to preact not being installed.

[rajasimon]

May be because of this import Component from 'preact'; and change to { Component } solve

[rbenvenuto]

I faced the same issue with a package that depends on Preact.

• checked my `node_modules, preact is installed
• tried changing import { Component } from 'preact' to import Preact from 'preact' and doing Preact.Component where i needed
• Tried erasing node_modules and yarn.lok and installing the dependencies again.
• tried console.log(Preact.Component) and it prints undefined
• I'm in a create-react-app application

None of this worked
Can anyone help me?

Here's my package.json

"dependencies": {
"@private/package": "file:./path-to-private/package", // this is the package that's giving me the bug
"react": "^16.4.1",
"webpack": "3.8.1",
...
}