C#•4mo ago

.NET Maui font problems

Hi, I am building an app in .Net Maui. I use custom fonts. They worked very well and suddenly, the program started to crash, saying the fonts uri was not correct. I haven't moved anything. I opened a similar project and it worked well, same configuration. I simply do lot get it.

        public static MauiApp CreateMauiApp()
        {
            var builder = MauiApp.CreateBuilder();
            builder
                .UseMauiApp<App>()
                .ConfigureFonts(fonts =>
                {
                    fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
                    fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
                    fonts.AddFont("BLOOMINGS.OTF", "Bloomings");
                    fonts.AddFont("FUTURA BOOK FONT.TTF", "FuturaBook");
                    fonts.AddFont("FUTURA BOOK ITALIC FONT.TTF", "FuturaBookItalic");
                });

#if DEBUG
            builder.Logging.AddDebug();
#endif
          return builder.Build();
        }
    }

        public static MauiApp CreateMauiApp()
        {
            var builder = MauiApp.CreateBuilder();
            builder
                .UseMauiApp<App>()
                .ConfigureFonts(fonts =>
                {
                    fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
                    fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
                    fonts.AddFont("BLOOMINGS.OTF", "Bloomings");
                    fonts.AddFont("FUTURA BOOK FONT.TTF", "FuturaBook");
                    fonts.AddFont("FUTURA BOOK ITALIC FONT.TTF", "FuturaBookItalic");
                });

#if DEBUG
            builder.Logging.AddDebug();
#endif
          return builder.Build();
        }
    }

<Entry
Grid.Column="2"
x:Name="Search"
Placeholder="Search"
PlaceholderColor="#BFBFBF"
BackgroundColor="#FFFFFF"
FontSize="11"
FontFamily="FUTURA BOOK FONT"
TextColor="#383838"
VerticalTextAlignment="Start"
    HorizontalTextAlignment="End"
HorizontalOptions="Fill"

VerticalOptions="Center"
WidthRequest="90"
/>

<Entry
Grid.Column="2"
x:Name="Search"
Placeholder="Search"
PlaceholderColor="#BFBFBF"
BackgroundColor="#FFFFFF"
FontSize="11"
FontFamily="FUTURA BOOK FONT"
TextColor="#383838"
VerticalTextAlignment="Start"
    HorizontalTextAlignment="End"
HorizontalOptions="Fill"

VerticalOptions="Center"
WidthRequest="90"
/>

71 Replies

Buddy•4mo ago

$details

MODiX•4mo ago

When you ask a question, make sure you include as much detail as possible. Such as code, the issue you are facing, and what you expect the result to be. Upload code here https://paste.mod.gg/ (see $code for more information on how to paste your code)

Emmanuel•4mo ago

And the error:

System.ArgumentException: The parameter is incorrect.

Assets/Fonts/FUTURA BOOK FONT.otf is not a valid absolute URI.
   at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|39_0(Int32 hr)
   at WinRT.ExceptionHelpers.ThrowExceptionForHR(Int32 hr)
   at ABI.System.WinRTUriRuntimeClassFactory.CreateUri(String uri)
   at ABI.System.Uri.CreateMarshaler(Uri value)
   at Microsoft.Graphics.Canvas.Text.CanvasFontSet._ICanvasFontSetFactory.Create(Uri uri)
   at Microsoft.Graphics.Canvas.Text.CanvasFontSet.<>c__DisplayClass11_0.<.ctor>b__0()
   at Microsoft.Graphics.Canvas.Text.CanvasFontSet..ctor(Uri uri)
   at Microsoft.Maui.FontManager.FindFontFamilyName(String fontFile)
'ChlorophyGUITests.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\IDE\PrivateAssemblies\Runtime\Microsoft.VisualStudio.Debugger.Runtime.NetCoreApp.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ChlorophyGUITests.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\netstandard.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.

System.ArgumentException: The parameter is incorrect.

Assets/Fonts/FUTURA BOOK FONT.otf is not a valid absolute URI.
   at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|39_0(Int32 hr)
   at WinRT.ExceptionHelpers.ThrowExceptionForHR(Int32 hr)
   at ABI.System.WinRTUriRuntimeClassFactory.CreateUri(String uri)
   at ABI.System.Uri.CreateMarshaler(Uri value)
   at Microsoft.Graphics.Canvas.Text.CanvasFontSet._ICanvasFontSetFactory.Create(Uri uri)
   at Microsoft.Graphics.Canvas.Text.CanvasFontSet.<>c__DisplayClass11_0.<.ctor>b__0()
   at Microsoft.Graphics.Canvas.Text.CanvasFontSet..ctor(Uri uri)
   at Microsoft.Maui.FontManager.FindFontFamilyName(String fontFile)
'ChlorophyGUITests.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\IDE\PrivateAssemblies\Runtime\Microsoft.VisualStudio.Debugger.Runtime.NetCoreApp.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'ChlorophyGUITests.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\netstandard.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.

leowest•4mo ago

FontFamily="FUTURA BOOK FONT"

leowest•4mo ago

u named it FuturaBookItalic when u add it so you should call FontFamily="FuturaBookItalic" if you still have issues I would try to rename the otf file to lower case and remove the space to see if it finds it first

Emmanuel•4mo ago

I use FUTURA BOOK. I tried renaming too. Matched perfectly, without success, with or without spaces.

leowest•4mo ago

and have u tried to name the otf file all lower case with no space? in your solution explorer I've seen Maui having issue with files with name spaces and upper case letter some times

leowest•4mo ago

leowest•4mo ago

u can also open the otf/ttf file and use the name inside because it can sometimes contain multiple types so here I can use FontFamily="Eina03-Bold"

Emmanuel•4mo ago

Pretty sure I did, will try again and get back to you! Thanks!

Emmanuel•4mo ago

csproj

Emmanuel•4mo ago

Somehow it gets stuck on this capital letter thing Even though it's nowhere

leowest•4mo ago

u have to remove the other 2 with space on the name from here I mean, otherwise it will still try to load the wrong named fonts and fail ~~wait why they marked as none remove~~ ah no that's right mine is the same thou it should be something else

Emmanuel•4mo ago

Yeah, they are genuinely nowhere and not referenced either

leowest•4mo ago

in the properties its marked as MauiFont right?

Emmanuel•4mo ago

yep

leowest•4mo ago

I mean in here you still have the 2 entries of the files with space on the name u need to remove those

Emmanuel•4mo ago

My problem was fixed, but it crashes anyway

Emmanuel•4mo ago

I do not get the error caused by the fonts though

leowest•4mo ago

try to clean the solution then rebuild

Emmanuel•4mo ago

The rebuild succeeded but it crashes when i Debug

leowest•4mo ago

in xaml how are u calling the font inthe fontfamily

Emmanuel•4mo ago

as I should as far as i know

leowest•4mo ago

and does it work if u remove it?

Emmanuel•4mo ago

nope

leowest•4mo ago

and if u comment the 2 entries loading the fonts in the maui cs file does it work?

Emmanuel•4mo ago

fonts.AddFont("bloomings.otf", "bloomings"); fonts.AddFont("futurabook.ttf", "futurabook"); fonts.AddFont("futurabookitalic.ttf", "futurabookitalic"); These? crashes too This is insane It worked all afternoon

leowest•4mo ago

then your problem now is else where I guess do u have a github of this project?

Emmanuel•4mo ago

yes https://github.com/dotnetemmanuel/ChlorophyGUITests

GitHub

GitHub - dotnetemmanuel/ChlorophyGUITests

Contribute to dotnetemmanuel/ChlorophyGUITests development by creating an account on GitHub.

leowest•4mo ago

is it up to date with the issue ur having?

Emmanuel•4mo ago

yeah I just pushed it

leowest•4mo ago

ok give me 15 minutes and I will take a look

Emmanuel•4mo ago

Awesome! Thanks!

leowest•4mo ago

you're building it for windows?

Emmanuel•4mo ago

right now yeah it's a university project

leowest•4mo ago

ok found it

<Image Source="succulents.jpg"
       VerticalOptions="FillAndExpand"
       Aspect="AspectFill"
       Opacity="0.8"
       Margin="-230,0,0,0"/>

<Image Source="succulents.jpg"
       VerticalOptions="FillAndExpand"
       Aspect="AspectFill"
       Opacity="0.8"
       Margin="-230,0,0,0"/>

Emmanuel•4mo ago

Seriously?

leowest•4mo ago

that was causing it to crash

Emmanuel•4mo ago

Why?

leowest•4mo ago

the negative 230 is probably causing some issue I dont know what the image is or what u want to do with it so hard to tell

Emmanuel•4mo ago

Haha, i just want to offset it It should fill the whole border, bit I want to offset it To the left

leowest•4mo ago

I have also removed one of the fonts they were both the same file wise apparently

Emmanuel•4mo ago

Which one?

leowest•4mo ago

futura I left this one fonts.AddFont("futurabook.ttf", "futurabook");

leowest•4mo ago

Emmanuel•4mo ago

Haha yeah that image shouldnt look that way Will try tomorrow Thanks so much! Will get back to you. Whats your timezone?

leowest•4mo ago

im not sure I understood that tip of something at the bottom in the middle?

Emmanuel•4mo ago

Yeah, you should see a whole fucking loads of succulents Will keep trying tomorrow

leowest•4mo ago

ok but you want to fill it inside not on the border? -3

leowest•4mo ago

you should probably add a grid to your border and work from there u will get a much easier result then negativating margins

Emmanuel•4mo ago

True Thanks for the advice Started with maui yesterday so it's still a bit fresh

leowest•4mo ago

its ok 😉 althou I would suggest you either use WPF or UWP if your target is only windows due to the proportion of that image u will have a hard time filling it the way u want I see what is going on its rescaling it making it grow under

Emmanuel•4mo ago

Yeah, our teacher chose Maui, this app will be for android and windows. Thats why

leowest•4mo ago

fair, at least you're learning xaml and not winforms 🙂

Emmanuel•4mo ago

Maui is quite buggy But i like it somehow

leowest•4mo ago

well youre dealing with edge technology so yeah there will be things that wont be as simple as u think they will 🙂 and u might need to do hacks to get around some

Emmanuel•4mo ago

It's not as counterintuitive as i thought

leowest•4mo ago

but MAUI is getting a lot of love so who knows in a few more years its just sad it gets no linux support which would probably make it a lot more popular

Emmanuel•4mo ago

People are too dismissive too fast imo

leowest•4mo ago

I wouldn't say dismissive its just that they need to consider for example say u need a crossplatform app that also works on linux MAUI does all the 4 other platform u need so now u need to create a MAUI app and then another app with another tech to cover for linux so you have to maintain 2 separated code bases as oppose to choose a tech that covers all of it so people just go for the latter either it being electron, tauri, avalonia or w/e Also as far as I remember, last I checked MAUI was still not production ready even thou it does work quite well to some extent

Emmanuel•4mo ago

Yeah, i meant people in general, complaining about Maui not woeking properly. It's still quite impressive

leowest•4mo ago

yeah, I mean that will always exist specially when its something free and some parts get more attention than others.

Emmanuel•4mo ago

Thanks again for your help! I got it to work in no time! Really appreciate

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.NET Maui font problems