C#•2mo ago

Null reference exception

I am attempting to make a discord bot, and when I run a command like "?hello" I get a NullReferenceException. _commands was null. So I attempted to fix it by initializing _commands in the startup by adding:

private CommandService _commands;
private IServiceProvider _services:

public async Task InitializeAsync()
{
    _commands = new CommandService();
    _services = new ServiceCollection()
        .AddSingleton(_commands)
        .BuildServiceProvider();

    await _commands.AddModulesAsync(Assembly.GetEntryAssembly(), _services);
}

private CommandService _commands;
private IServiceProvider _services:

public async Task InitializeAsync()
{
    _commands = new CommandService();
    _services = new ServiceCollection()
        .AddSingleton(_commands)
        .BuildServiceProvider();

    await _commands.AddModulesAsync(Assembly.GetEntryAssembly(), _services);
}

and then making sure to call the InitializeAsync() in the Main task. However, now I get error CS1503: Argument 1: cannot convert from System.Reflection.Assembly to System.Type. I'm a little stumped on this and can't really find any details on what should be in place of Assembly.GetEntryAssembly()

4 Replies

merlo17OP•2mo ago

Here's a full view of my Program.cs which serves as the startup script

merlo17OP•2mo ago

and my CommandHandler.cs where I'm getting the NullReferenceExcpetion

Angius•2mo ago

Where does HandleCommandAsync() get _commands from? And cannot convert from System.Reflection.Assembly to System.Type. is quite clear It needs a type, not an assembly

Unknown User•2mo ago

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Gaming

Programming

Null reference exception

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