Panicked at 'there is no reactor running, must be called from the context of a Tokio 1.x runtime'

[Amazingkenneth]

I am trying to grab data from the web for initialization.
However, it panicked at runtime with the following error.

PS C:\Users\amazi\test> cargo run
   Compiling test v0.1.0 (C:\Users\amazi\test)
    Finished dev [unoptimized + debuginfo] target(s) in 7.95s
     Running `target\debug\test.exe`
thread '<unnamed>' panicked at 'there is no reactor running, must be called from the context of a Tokio 1.x runtime', D:\Scoop\persist\rustup-msvc\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.14.23\src\client\connect\dns.rs:121:24
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Here are the source code for representing:

src/main.rs:

#![allow(dead_code)]
use iced::executor;
use iced::{Application, Command, Element, Settings, Theme};
use reqwest;

pub fn main() -> iced::Result {
    Hello::run(Settings::default())
}

#[derive(Debug)]
enum Error {
    SomeError,
}

enum Hello {
    Loading,
    Loaded(Result<State, Error>),
}

#[derive(Debug)]
struct State;
impl State {
    async fn grab() -> Result<State, Error> {
        let cli = reqwest::Client::new();
        let content: String = cli
            .get("http://www.httpbin.org/get")
            .send()
            .await
            .expect("Cannot send request")
            .text()
            .await
            .expect("Cannot convert response to text.");
        println!("{}", content);
        Ok(State)
    }
}

#[derive(Debug)]
enum Message {
    Loading,
    Loaded(Result<State, Error>),
}

impl Application for Hello {
    type Executor = executor::Default;
    type Flags = ();
    type Message = Message;
    type Theme = Theme;

    fn new(_flags: ()) -> (Hello, Command<Self::Message>) {
        (
            Hello::Loading,
            Command::perform(State::grab(), Message::Loaded),
        )
    }

    fn title(&self) -> String {
        String::from("A cool application")
    }

    fn update(&mut self, _message: Self::Message) -> Command<Self::Message> {
        Command::none()
    }

    fn view(&self) -> Element<Self::Message> {
        "Hello, world!".into()
    }
}

Cargo.toml:

[package]
name = "test"
version = "0.1.0"
edition = "2021"

[dependencies]
iced = "0.5"
reqwest = "0.11"
tokio = { version = "1", features = ["full"] }

How can I solve the problem?
Thanks.

[hecrj]

Enable the tokio feature in iced:

iced = { version = "0.5", features = ["tokio"] }

[Amazingkenneth]

Thank you. I had been looking for the possible solutions, but seemed all of them were about the lagging version in other projects. As a user, I hope the documentation can be more comprehensive because I hadn't found any instructions that prompt me to enable this feature before. Thank you again, this really helps.