Wix 4.0 error WIX0200: The UI element contains an unhandled extension element 'WixUI'

[rnikey]

I realise that there is a similar discussion recently, but this is WixUI. I implemented the changes required from that discussion, being to add the extension via command "wix extension add -g WixToolset.Util.wixext" and then include the extension in the build command as is shown below.

I converted my v3 .wxs script to v4 using the conversion tool.

Declaration shows (as converted by the conversion tool)...

<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:ui="http://wixtoolset.org/schemas/v4/wxs/ui">

Element reference further down (as converted by the conversion tool), now within the Package element, was Product element previously...

<ui:WixUI Id="WixUI_Advanced" />

Cut and paste from the command line...

C:\Users\Mikey\OneDrive\Development Battambang>wix build -o product.msi MikeyPersonal2.wxs -ext C:\Users\Mikey\.wix\extensions\WixToolset.Util.wixext\4.0.1\wixext4\WixToolset.Util.wixext.dll
C:\Users\Mikey\OneDrive\Development Battambang\MikeyPersonal2.wxs(224) : error WIX0200: The Package element contains an unhandled extension element 'WixUI'. Please ensure that the extension for elements in the 'http://wixtoolset.org/schemas/v4/wxs/ui' namespace has been provided.

What should I do?

[rnikey]

I did cut and paste the declaration, and it is shown if I attempt to edit the question. I don't know why it's not showing above.

[robmen]

Fixed it for you. Fenced code blocks FTW.

[rnikey]

Thank you. I'm retired now, just working on my own stuff and don't really want to learn Fenced code blocks. If I were younger I would. Maybe I still will if I have to keep posting, hopefully not though :). Thanks for helping.

[robmen]

It turns out I covered exactly this topic very recently in the Deployment Dojo. Check out Episode 37 - Using WixExtensions in WiX v4 to go beyond MSI functionality for all the details.

[rnikey]

The details in my question should have alerted you to the fact that I probably had already watched that video.

[rnikey]

I found the problem. I should have installed WixToolset.UI.wixext, as I meant to, and not WixToolset.Util.wixext. Working too late and cutting and pasting the wrong line.