WIX0200: The Component element contains an unhandled extension element 'XmlConfig'. Please ensure that the extension for elements in the 'http://wixtoolset.org/schemas/v4/wxs/util' namespace has been provided.

[DipakTated]

Why do i see this error

error WIX0200: The Component element contains an unhandled extension element 'XmlConfig'. Please ensure that the extension for elements in the 'http://wixtoolset.org/schemas/v4/wxs/util' namespace has been provided.

I have wix 4 installed 4.0.2+644ed011
and wix toolset of 3.14 at my folder C:\Program Files (x86)\WiX Toolset v3.14

Code is as follows :

[DipakTated]

issuewix.txt

[NJullienSweet]

I have the same error for bal.

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
	<Bundle Version="0.0.0.0" UpgradeCode="09974739-b91b-4e1e-a942-bd8759319f6a">
		<BootstrapperApplication>
			<bal:WixStandardBootstrapperApplication LicenseFile="License.rtf" LogoFile="Logo.png" Theme="rtfLargeLicense" />
		</BootstrapperApplication>
		<Chain>
			<!-- [...] -->
		</Chain>
	</Bundle>
</Wix>

error WIX0200: The BootstrapperApplication element contains an unhandled extension element 'WixStandardBootstrapperApplication'. Please ensure that the extension for elements in the 'http://wixtoolset.org/schemas/v4/wxs/bal' namespace has been provided.

[barnson]

Please provide a minimal reproducible example as an attachment or GitHub repo.

[jcmarcanotrias]

Same problem here:

<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:util="http://wixtoolset.org/schemas/v4/wxs/util">
	<Package Name="PAppScriptsInstaller" Manufacturer="xxxxxx" Version="1.0.0.0" UpgradeCode="9a2b6d7e-60b6-4c2b-9f52-523c41dd55ad">

		<MajorUpgrade DowngradeErrorMessage="!(loc.DowngradeError)" />

		<MediaTemplate EmbedCab="yes"/>

		<Launch Condition="MsiNTProductType = 1" Message="Not valid system"/>

		<util:QueryNativeMachine />

		<Launch Condition="1" Message="WIX_NATIVE_MACHINE"/>
		
		<Feature Id="Main">
			<ComponentGroupRef Id="ConsoleApp1" />
		</Feature>
	</Package>
</Wix>

WIX0200 The Package element contains an unhandled extension element 'QueryNativeMachine'. Please ensure that the extension for elements in the 'http://wixtoolset.org/schemas/v4/wxs/util' namespace has been provided.

[jcmarcanotrias]

I solved it updating from version 4.0.4 to 5.0.1.

Version 5.0.0 also works.

versions 4.x.x does not work

[jcmarcanotrias]

To show the environment variable value, I changed the code

	<util:QueryNativeMachine />

	<Launch Condition="TRUE" Message="[WIX_NATIVE_MACHINE]"/>

[bevanweiss]

I suspect the cause of these error messages is that the wixext is not referenced in the project(s)
Like C# libraries, if you use an extension, you need to bring it into the project. Nuget is the answer..

For each non-wxs namespace, you're probably going to need an extension (.wixext) referenced by the project.