ovmf-prebuilt v0.1.0-alpha.1 doesn't compile

[Zingoooooo]

The result i get when I compile with cargo 1.70.0-nightly (15d090969 2023-03-21) is listed below. What am I missing?
I'm following the migration guide from 0.9.

Compiling ovmf-prebuilt v0.1.0-alpha.1
error[E0463]: can't find crate for std
|
= note: the x86_64-unknown-none target may not support the standard library
= note: std is required by ovmf_prebuilt because it does not declare #![no_std]
= help: consider building the standard library from source with cargo build -Zbuild-std

error[E0463]: can't find crate for std
--> /home/zingo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ovmf-prebuilt-0.1.0-alpha.1/src/lib.rs:1:5
|
1 | use std::path::{PathBuf, Path};
| ^^^ can't find crate
|
= note: the x86_64-unknown-none target may not support the standard library
= help: consider building the standard library from source with cargo build -Zbuild-std

error: cannot find macro assert in this scope
--> /home/zingo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ovmf-prebuilt-0.1.0-alpha.1/src/lib.rs:5:5
|
5 | assert!(path.exists(), "OVMF-pure-efi.fd does not exist");
| ^^^^^^
|
= help: consider importing this macro:
core::assert

error: cannot find macro env in this scope
--> /home/zingo/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ovmf-prebuilt-0.1.0-alpha.1/src/lib.rs:4:26
|
4 | let path = Path::new(env!("CARGO_MANIFEST_DIR")).join("OVMF-pure-efi.fd");
| ^^^
|
= help: consider importing this macro:
core::env

[IntegralPilot]

I'm having this issue too, any chance you figured out how to resolve it?

[phil-opp]

Could you give more details about the commands that you're running and your project setup? Or do you have your project online somewhere so that I can take a look?

In general, the ovmf-prebuilt should be built for your host system, not for the x86_64-unknown-none target.

[br0kenpixel]

I ran into the same issue. Turns out, my .cargo/config.toml was also forcing ovmf-prebuilt to be built for the x86_64-unknown-none target. I fixed it by moving the [build] section to a separate .cargo/config.toml inside my kernel crate.

.
├── .cargo
│   └── config.toml <-- only contains `[unstable] bindeps = true`
├── Cargo.lock
├── Cargo.toml
├── build.rs
├── kernel
│   ├── .cargo
│   │   └── config.toml <-- only contains `[build] target = "x86_64-unknown-none"`
│   ├── Cargo.toml
│   └── src
├── rust-toolchain.toml
├── src
│   └── main.rs
└── target