rust-analyzer: proc macro `*` not expanded: proc macro not found

@juanmait @alice-i-cecile That version is older than the fix for the tokio::main problem. If you install the pre-release, I’d expect you to get a newer version though (2022-06-20 or now 2022-06-23 with extension version 0.4.1103).

Hi, I’m currently seeing this with clap:

E.g. with the stub program:

use clap::Parser;

#[derive(Parser)]
#[clap(author, version, about, long_about = None)]
struct Args {
}

fn main() {

}

Cargo.toml: clap = { version = "3.2.6", features = ["derive"]}

Then I get this error from rust-analyzer:

proc macro clap not expanded: proc macro not found

(Although the code itself builds fine without any errors/warnings via cargo)

rustc 1.61.0 (fe5b13d68 2022-05-18) rust-analyzer: v0.4.1102 (also saw the same thing with the stable release before trying this pre-release)

@mattbradbury Nothing broke it, it never worked. We just didn’t show the error as prominently before.

#12600

@alfuhigi Your problem is the exact opposite of @mattbradbury. You are using an arm64 version of vscode, but you are using an x86_64 version of rustc. Switching to the aarch64-apple-darwin version should work.

@flodiebold Actually it just worked after doing a simple extension reload 👍🏼 Thanks 😃