# Bug OP-3375 - Errors with jquery-ui in webpack and Client JS

Project: OpenProject
Status: closed
URL: https://community.openproject.org/work_packages/OP-3375

## Open points

_No work packages_

## Details

| Attribute | Value |
| --- | --- |
| Date |  |
| Priority | Immediate |
| Module |  |
| Target versions |  |
| Observed in versions |  |
| Sprint |  |
| Backlog bucket |  |
| Bug found in version (deprecated) |  |
| Found in mobile app version |  |
| Follow-up feedback e-mail |  |
| Requires doc change | No |
| Accessibility | No |
| Pull preview |  |
| List |  |
| Labels |  |

## People

| Attribute | Value |
| --- | --- |
| Assignee |  |
| Accountable |  |
| Product manager |  |
| Developers |  |
| Designer |  |
| Ordered by |  |
| Signed off by |  |
| Interest by |  |

## Planning

| Attribute | Value |
| --- | --- |
| Relevance |  |

## Costs

| Attribute | Value |
| --- | --- |
| Votes |  |
| Work |  |
| Labor costs |  |

## Description

I have installed Openproject according to the manual instructions (cloned from git `stable/6`).  
When I execute `RAILS_ENV="production" ./bin/rake assets:precompile` webpack complains:

    ERROR in /srv/openproject/vendored-plugins/openproject-backlogs/frontend/app/openproject-backlogs-app.js
        Module not found: Error: Cannot resolve module 'jquery-ui/ui/jquery-ui.js' in /srv/openproject/vendored-plugins/openproject-backlogs/frontend/app
         @ /srv/openproject/vendored-plugins/openproject-backlogs/frontend/app/openproject-backlogs-app.js 47:0-36

This leads to error messages in the browsers JS console like `Cannot find module "jquery-ui/ui/jquery-ui.js"`

I also cant view work packages. I just see an error message which says “The URL does not contain a user defined query” (loosely translated from german).  
I suppose this is because of the missing jQuery UI.