XAML is the problem of crash only in release mode

[mchiz]

Hi!

I just upgraded my app to .NET 9 and it works very well in debug. In release, it crashed. I kind of narrowed down the problem to my XAML style files. Specifically with CommunityToolkit "AppThemeResource" and friends.

I set to "false" the flag and it solved some of these problems, but not all.

I don't know what is doing the release mode that is affecting the XAML data. Does someone know what is happening? Maybe in release mode is activated some kind of trimmer?

Thanks a lot.

[asi-evin]

Could be a compile vs non-compiled xaml problem. Hot reload likes to ignore missing or incorrect tags whereas not so much when compiled. I add this to all my projects now for just this reason, maybe it will help you:

	<!-- Remove comment if XAML Parse errors are expected -->
	<!--<PropertyGroup Condition="'$(Configuration)' == 'Debug'">
		<_MauiForceXamlCForDebug>true</_MauiForceXamlCForDebug>
	</PropertyGroup>-->

As a bonus, your debug build will be much faster BUT you lose Hot Reload.

[baaaaif]

Sounds much like CommunityToolkit/Maui#2415 and will be fixed in the next MCT release

[mchiz]

Thank you both!