# uiBuilder Fails in Proxmox
**URL:** https://discourse.nodered.org/t/uibuilder-fails-in-proxmox/64621
**Category:** Dashboard
**Tags:** uibuilder
**Created:** [3 July 2022 03:30 UTC](https://discourse.nodered.org/t/uibuilder-fails-in-proxmox/64621 "2022-07-03T03:30:30Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Paulf007](https://discourse.nodered.org/u/Paulf007)
#### Post date: [3 July 2022 03:30 UTC](https://discourse.nodered.org/t/uibuilder-fails-in-proxmox/64621/1 "2022-07-03T03:30:30Z")
I have been running UiBuilder successfully in node red for a couple of months but it is v4.1.4.
Generally speaking I don't update/upgrade node's unless something is broken so I have stayed behind.
I am testing the latest update of UiBuilder but I am not having joy and I am suspecting that it might be the setup:
System : Proxmox LXC running the latest version of node red BUT installed as root.
Installed libraries : [**bootstrap**](https://getbootstrap.com/)[**bootstrap-vue**](http://192.168.8.51:1880/undefined) [**vue**](https://github.com/vuejs/core/tree/main/packages/vue#readme)
Loading one for the template files I get a blank page with errors of not finding the CSS files and now I get the following -
"[uibuilder:308542c0df5d7a4e] TypeError: Cannot read property 'stack' of undefined"
with the page not working at all.
I suspect that it has something to do with running node red as root. but I am not sure how to fix this or if it could be fixed.
As I note on my production system Uibuilder is running fine so I have to assume that some thing has changed with the most latest update.
Any suggestions?
-- UPDATE --
I removed UI Builder and then installed it again and I am getting the following errors:
3 Jul 03:33:12 - [info] Installing module: node-red-contrib-uibuilder, version: 5.1.1
3 Jul 03:33:43 - [info] Installed module: node-red-contrib-uibuilder
3 Jul 03:33:44 - [error] [uibuilder:package-mgt:readPackageJson] Failed to read package.json file from /root/.node-red/uibuilder
3 Jul 03:33:44 - [warn] [uibuilder:package-mgt:getUibRootPackageJson] Could not read /root/.node-red/uibuilder/package.json. Creating minimal version.
3 Jul 03:33:44 - [warn] [uibuilder:package-mgt:getUibRootPackageJson] No uibRoot/package.json file, creating minimal file.
With the front-end libraries installed and Simple VueJs template loaded I get a blank page with the following in console
So it seems as if the Libraries cannot be found
---
### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [3 July 2022 11:19 UTC](https://discourse.nodered.org/t/uibuilder-fails-in-proxmox/64621/2 "2022-07-03T11:19:09Z")
The error and warnings are simply saying that there was no package.json file in the uibRoot folder (`/root/.node-red/uibuilder`) and so it created one because one is needed in order to keep track of installed packages. Actually, that's a slight bug because I should really include that in the initial setup. Will be fixed in v6.
Can you please check that the `/root/.node-red/uibuilder/package.json` file actually contains the dependencies listing vue and bootstrap-vue? It should look something like this:
```auto
{
"name": "uib_root",
"version": "6.0.0-dev",
"description": "Root configuration and data folder for uibuilder",
"scripts": {},
"dependencies": {
"bootstrap": "^4.6.1",
"bootstrap-vue": "^2.22.0",
"vue": "^2.7.0"
},
"homepage": "",
"bugs": "",
"author": "",
"license": "Apache-2.0",
"repository": "",
"uibuilder": {
"packages": {
"bootstrap": {
"installFolder": "\\src\\uibRoot\\node_modules\\bootstrap",
"installedVersion": "4.6.1",
"estimatedEntryPoint": "dist/js/bootstrap.js",
"homepage": "https://getbootstrap.com/",
"packageUrl": "/bootstrap",
"url": "../uibuilder/vendor/bootstrap/dist/js/bootstrap.js",
"spec": "^4.6.1"
},
"bootstrap-vue": {
"installFolder": "\\src\\uibRoot\\node_modules\\bootstrap-vue",
"installedVersion": "2.22.0",
"estimatedEntryPoint": "./dist/bootstrap-vue.common.js",
"homepage": "https://bootstrap-vue.org",
"packageUrl": "/bootstrap-vue",
"url": "../uibuilder/vendor/bootstrap-vue/./dist/bootstrap-vue.common.js",
"bootstrap": "^4.6.1",
"spec": "^2.22.0"
},
"vue": {
"installFolder": "\\src\\uibRoot\\node_modules\\vue",
"installedVersion": "2.7.0",
"estimatedEntryPoint": "dist/vue.js",
"homepage": "https://github.com/vuejs/vue#readme",
"packageUrl": "/vue",
"url": "../uibuilder/vendor/vue/dist/vue.js",
"spec": "^2.7.0"
}
}
}
}
```
Also, double-check that you have Vue v2 installed and not v3 since bootstrap-vue only works with v2 and the VueJS project changed the default a while back.
Then can you check whether the [socket.io](http://socket.io) and uibuilderfe.js libraries got loaded in your front-end?
---
### Author:  [@Paulf007](https://discourse.nodered.org/u/Paulf007)
#### Post date: [3 July 2022 14:41 UTC](https://discourse.nodered.org/t/uibuilder-fails-in-proxmox/64621/3 "2022-07-03T14:41:09Z")
> [@TotallyInformation](#):
>
> `2.7.0`
Ah , that was it - as predicted I installed v3 removed it and installed 2.7 and all is now happy.
Now to have a look at what is new, thank you!!!
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [17 July 2022 14:41 UTC](https://discourse.nodered.org/t/uibuilder-fails-in-proxmox/64621/4 "2022-07-17T14:41:36Z")
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