use of undeclared crate or module eframe

[chlin501]

I am very newbie to egui. I want to use egui for my side project. Searching the discussion here, but I do not find any related discussion. After adding egui crate to my project in Cargo.toml

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

[dependencies]
...
egui = "0.27.2"

In the main.rs file, I add use eframe::egui;. Then building the app with cargo build. Then the rust compiler complains

error[E0432]: unresolved import `eframe`
 --> src/main.rs:8:5
  |
8 | use eframe::egui;
  |     ^^^^^^ use of undeclared crate or module `eframe`

For more information about this error, try `rustc --explain E0432`.
error: could not compile `myapp` (bin "myapp") due to 1 previous error

How should I fix this error? Thanks

[YgorSouza]

If you are using eframe, you should add eframe as a dependency, not egui. See these sections from the README:

https://github.com/emilk/egui?tab=readme-ov-file#what-is-the-difference-between-egui-and-eframe
https://github.com/emilk/egui?tab=readme-ov-file#quick-start

[chlin501]

Oh did not know that. This fixes my problem. Thank you!