Cannot find module 'popper.js' or its corresponding type declarations

[seseso]

Version

1.0.0

Reproduction link

http://i-dont-have-a reproducer.com

Operating System

Ubuntu

Device

Browser & Version

Steps to reproduce

1. git clone
2. npm run install:clean

What is expected?

The project should compile without errors

What is actually happening?

There are compilation errors

---

Solution

Additional comments

[gkimpson]

I am having the exact same issue running the following

Mac OS Big Sur
Node - 14.15.1
NPM 6.14.8

Have run the npm install:clean command and just loaded up this in browser (get a white screen) whilst I get the same error in several places

.e.g

src/app/components/dropdowns/user-dropdown/user-dropdown.component.ts:2:20 - error TS2307: Cannot find module 'popper.js' or its corresponding type declarations.

[saulovls]

Guys, please run this line in terminal:

npm install @types/popper.js

This will resolve the problem.

[AlonSerrano]

Please use

import { createPopper } from '@popperjs/core';

and change

createPoppper() { createPopper(this.btnDropdownRef.nativeElement, this.popper, { placement: "bottom-end", }); this.btnDropdownRef.nativeElement.parentNode.insertBefore( this.popper, this.btnDropdownRef.nativeElement.nextSibling ); }

Popper v1 is deprecated

[einazare]

Hello guys,

Sorry for this late reply, Github did not notify me about this issue.
Glad that a solution was found. We'll make an update in about 2 months to the project and solve this as well.

Best,
Manu

[drjorgepolanco]

If somebody is having this issue on Rails, I had the issue trying to install Bootstrap.
This is what worked for me:

• yarn add bootstrap@5.0.0
• yarn add jquery
• yarn add @popperjs/core

[einazare]

Hello there, @drjorgepolanco ,

Thank you for sharing this with us.
It is a bit weird that you are adding Bootstrap on a Tailwind CSS project.
I think you should delete node_modules and package-lock.json and yarn-lock.json if you have any, and try installing the product with npm instead of yarn.

Best,
Manu

[shubham-selldo]

If somebody is having this issue on Rails, I had the issue trying to install Bootstrap. This is what worked for me:

• yarn add bootstrap@5.0.0
• yarn add jquery
• yarn add @popperjs/core

Thanks @drjorgepolanco this worked for me with rails 7