javascript - vue project introduces and generates WeChat two-digit plug-in qrcode.js error report

Question

The page reports an error message, it seems like js library, import error

Introduction method in the project
2. If you use this method to reference import QRCode from '../../common/js/qrcode.js' in the project, the above error will not be reported, but it will Another error is reported, as shown below:

I call it like this in the project:

let qrcode = new QRCode(qrcodeNode, {
    width: 180,
    height: 180,
    colorDark: "#000000",
    colorLight: "#ffffff"
});

I don’t know why, I’m stuck here~~~ If you know the answer, please let me know, thank you very much~

Answer 1

OK, the problem has been solved, install it directly
1. npm install qrcodejs2 --save
2. import QRCode from 'qrcodejs2'
and you can use it in the Vue project~~~

Answer 2

import QRCode from '../../common/js/qrcode.js'