@Antthony_12
You stated you couldn't compile this script? I'm assuming you're using an old script or tutorial, or more likely AI. If the latter please be aware that the chat AI models (ChatGPT or other) didn't have the best learning resources for SHVDN and consequently Chat AI often invents its own methods and properties. I'm a big fan of AI, as in Stable Diffusion, but it is not the best way to script GTA V.

Since your script is not compiled - the code is exposed- i'm assuming it's both proper and ethical to review it. Most importantly, I hope you don't mind these suggestions and the reason your code isn't compiling yet still working:
You should be using the latest version of SHVDN if you're uploading mods.
For your directives you have choices:
using GTA.UI; //For notification and Subtitles
using Screen = GTA.UI.Screen; //For Subtitles

For notifications, depending on your directives:
Notification.PostTicker("Lap started!",true); //was Notification.Show

For ShowSubtitle, depending on your directives:
GTA.UI.Screen.ShowSubtitle("Elapsed time: " + formattedTime);
or
Screen.ShowSubtitle("Elapsed time: " + formattedTime); // based on your directives

@JohnFromGWN Thanks for your suggestions, I'm not going to bother you if you want to help me, in fact, I appreciate all help since I've never programmed in C# and even less for GTA 5. You caught me, the script was made by chatGTP ^^'.

Thanks to the code you've posted, it seems that it now runs with ScriptHookVDotNet3 and not 2 and that makes the warning that version 2 is deprecated not appear.

I'm using the latest version of SHVDN Nightly.
Regarding compiling it, I've managed to do it with net9.0.200 but SHVDN returns:
[17:08:22] [DEBUG] Loading assembly timer.dll ...
[17:08:22] [ERROR] Failed to load script assembly timer.dll when searching for script types because there is an assembly that the script tried to load as a dependency but couldn't. Exception message: One or more required types cannot be loaded. Retrieve the LoaderExceptions property for more information.
First LoaderException message (which tells what assembly is missing): System.IO.FileNotFoundException: Cannot load file or assembly 'System.Runtime, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
File name: 'System.Runtime, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'

Compiling it with net8.0 directly SHVDN ignores the script. So here I am stuck again.

@Antthony_12 There is nothing wrong with using Chat AI. However there are caveats. The learning models use whatever code they can find and most of it is outdated. As a result, the code it generates often is also outdated and the worst of it is that it will invent properties and methods. I haven't compiled your code and I really don't understand why SHVDN would generate such errors. I just spotted your errors in the text. I also use a timer, when I test for stability, and have never encountered such errors. When I have a chance, I'll compile your code and report back.

Finally, in passing, not all code will run uncompiled (for example LemonUI) and if you do use uncompiled scripts the convention is to use .3.cs, for example myscript.3.cs when using SHVDN3.

@Antthony_12 P.S. Are you using VS to compile? Either way, compile with .NET Framework 4.8

@JohnFromGWN Thank you very much, I will keep trying.

@Antthony_12 I can't reproduce your errors. I mean from the log it's very clear that your compiler can't find the necessary assemblies/references. Without knowing what IDE and/or C# compiler you're using I can't comment further. If you do use VS and I strongly recommend it, you will need to add the reference, whether they be System or mod libraries such as SHVDN, nativeui, lemonui, ifruit...etc.

@JohnFromGWN Yes, I'm using VS code and Net9.0, tomorrow I'll try .Net Framework 4.8.1 for devs. The libraries I use are SHVDN and System.windows.forms.dll (from net9.0) I haven't put anything else in the .csproj file, then a dotnet build and it compiles with a warning about the keys

Update: I managed to compile it thanks to a youtube tutorial 🥳🥳. Thanks again JohnFromGWN for helping out.

This is in case anyone is interested
https://www.youtube.com/watch?v=OZ_SUy0AXL4

@Antthony_12 Glad you fixed it. The "keys error" is likely due to System.Windows.Forms which needs to be added as a reference in VS for your key events. Don't understand why the video you watched took 20 minutes. Essentially, once VS is installed, you need a Class Library (.NET Framework) template and select 4.8 as your framework. That's it.

In passing, you can tell when a YouTuber is a noob when they don't recognize that the V and similar letters in the GTA franchise are actually Roman numerals. That's why you'll hear them pronounce Scripthook Vee instead of Five, Open Eye Vee instead of Open 4 etc. Funny how they recognize it's GTA 4 and GTA 5, not GTA Eye Vee and GTA Vee.

I found your conversation through a Google Search lol. Thank you @JohnFromGWN for giving the proper info I was looking for as the Notification.Show was deprecated and for some reason, I could not wrap my head around the suggestion that VS was suggesting.

Anyways, I won't flood the comments about my own personal stuff. Thanks both to John and Anthony, I got more out of your comments than I did off of searches on Google lol

@Benzo Effect Glad to help. Cheers