example compile error

hello, I use this crate, and it says :

error: set `DATABASE_URL` to use query macros online, or run `cargo sqlx prepare` to update the query cache
  --> examples/sqlx_orm.rs:9:1
   |
9  | / model! {
10 | |     state: App,
11 | |     table: joey_test,
12 | |
...  |
20 | |     },
21 | | }
   | |_^
   |
   = note: this error originates in the macro `$crate::sqlx_macros::expand_query` which comes from the expansion of the macro `model` (in Nightly builds, run with -Z macro-backtrace for more info)

use sqlx::PgPool;
use sqlx_models_orm::{model, Db};

#[derive(Clone)]
pub struct App {
    db: Db,
}

model! {
    state: App,
    table: joey_test,

    struct JoeyTest {
        #[sqlx_model_hints(int4, default)]
        id: i32,
        #[sqlx_model_hints(varchar)]
        name: String,
        #[sqlx_model_hints(int4)]
        age: Option<i32>,
    },
}

#[tokio::main]
async fn main() -> Result<(), sqlx::Error> {
    let pool = PgPool::connect("postgresql://root@localhost/joey").await?;
    let app = App { db: Db { pool, transaction: None } };

    let new_record = app.joey_test().insert(InsertJoeyTest { name: "Alice".to_string(), age: Some(30) }).save().await?;

    println!("Inserted record with ID: {}", new_record.attrs.id);
    Ok(())
}