How to resolve "unresolved import" in Rust when using VS Code? - visual-studio-code

Question

I'm fairly new to rust and have been following the official book that they provide on their site. During chapter 2 they tell you to import a "Rand" cargo which I did. However, when I try to run my code directly through VS Code I get an error saying "unresolved import rand". When I run it through command prompt, everything works fine. I've already tried every solution suggested here: https://github.com/rust-lang/rls-vscode/issues/513 and nothing seemed to have worked. Extensions that I'm using:
Better TOML
Cargo
Code Runner
Rust (rls)
Rust Assist
vsc-rustfmt
vscode-rust-syntax
Has anyone else ran into a similar problem or a know a solution? Thank you!
Edit: My Cargo.TOML looks like this:
[package]
name = "guessing_game"
version = "0.1.0"
authors = ["Name <MyNameHere#gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.6.0"
Edit 2: my main.rs file looks like this:
use rand::Rng;
use std::io;
use std::cmp::Ordering;
fn main()
{
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1, 101);
loop
{
println!("Please input your guess!");
let mut guess = String::new();
io::stdin().read_line(&mut guess).expect("Failed to read line!");
let guess: u32 = match guess.trim().parse()
{
Ok(num) => num,
Err(_) => continue,
};
println!("Your guess {}", guess);
match guess.cmp(&secret_number)
{
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal =>
{
println!("You win!");
break;
}
}
}
}

Answer 1

Got a fix!
In VSC, select Extensions, select the Code Runner extension, click the little gear symbol and select Extension Settings. It's the Code-runner: Executor Map setting that needs to be changed. Click the 'Edit in settings.json' link.
Add the following to the file:
"code-runner.executorMap": {
"rust": "cargo run # $fileName"
}
If you already have content in the settings.json file then remember to add a comma to the line above and put your edit inside the outermost curly braces, e.g.
{
"breadcrumbs.enabled": true,
"code-runner.clearPreviousOutput": true,
"code-runner.executorMap": {
"rust": "cargo run # $fileName"
}
}
This tells Code Runner to use the 'cargo run' command, instead of 'rustc'
This fix came from this question on stackoverflow.