[Question] could not access system parameter Res<Time>

[anzhi0708]

Hello, I'm new to bevy and I'm using bevy = "0.15.3". I wrote a basic helloworld and ran into some problems

use bevy::prelude::*;

// A simple plugin
pub struct HelloPlugin;
impl Plugin for HelloPlugin {
    fn build(&self, app: &mut App) {
        app.insert_resource(GreetTimer(Timer::from_seconds(2.0, TimerMode::Repeating)));
        app.add_systems(Startup, hello_world);
        app.add_systems(Update, (spawn_player, query_player).chain());
    }
}

// a simple system
fn hello_world() {
    println!("Hello, world!");
}

#[derive(Component)]
struct Name(String);

#[derive(Component)]
struct Hp(i32);

#[derive(Bundle)]
struct Player {
    name: Name,
    hp: Hp
}

// a simple system that adds 2 `player`s into the app
fn spawn_player(mut c: Commands) {
    c.spawn(
        Player {
            name: Name("Player 1".to_string()),
            hp: Hp(100)
        }
    );
    c.spawn(
        Player {
            name: Name("Player 2".to_string()),
            hp: Hp(100)
        }
    );
}

#[derive(Resource)]
struct GreetTimer(Timer);

fn query_player(time: Res<Time>, mut timer: ResMut<GreetTimer>, q: Query<&Name, With<Hp>>) {
    if timer.0.tick(time.delta()).just_finished() {
        for name in &q {
            println!("{}", name.0);
        }
    }
}

fn main() {
    App::new()
        .add_plugins(HelloPlugin)
        .run();
}

[anzhi0708]

Problem solved by adding basic plugin

fn main() {
    App::new()
        .add_plugins(MinimalPlugins)  // +++
        .add_plugins(HelloPlugin)
        .run();
}