unresolved import `async_task::Builder`

[osenberg-x]

Bevy version

latest

[Optional] Relevant system information

rust version: stable-x86_64-apple-darwin - rustc 1.74.0 os: macos 14.1.2

What you did

run: cargo run --example breakout

What went wrong

error[E0432]: unresolved import async_task::Builder--> /Users/x/.cargo/registry/src/index.crates.io-6f17d22bba15001f/async-executor-1.8.0/src/lib.rs:46:18 | 46 | use async_task::{Builder, Runnable}; | ^^^^^^^ noBuilder` in the root | = help: consider importing this struct instead: std::thread::Builder

For more information about this error, try rustc --explain E0432. error: could not compile async-executor (lib) due to previous error warning: build failed, waiting for other jobs to finish...`

[Patryk27]

Manually deleting Cargo.lock solved the issue for me.

[dmlary]

I'm encountering the same problem running cargo run -p ci, but able to build/run breakout just fine. I've tried removing Cargo.lock and target/.

My system is an m3 mac, so there's another difference.

dmlary@m3:~/src/bevy/vendor/bevy> cargo run -p ci
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `target/debug/ci`
$ cargo fmt --all -- --check
$ cargo clippy --workspace --all-targets --all-features -- -Dwarnings
    Finished dev [unoptimized + debuginfo] target(s) in 0.42s
$ cargo test --target-dir ../../target
   Compiling erased-serde v0.3.25
   Compiling hashbrown v0.14.0
   Compiling serde_json v1.0.94
   Compiling serde_derive v1.0.157
   Compiling thiserror v1.0.40
   Compiling bevy_reflect_derive v0.12.0 (/Users/dmlary/src/bevy/vendor/bevy/crates/bevy_reflect/bevy_reflect_derive)
   Compiling bevy_ecs_macros v0.12.0 (/Users/dmlary/src/bevy/vendor/bevy/crates/bevy_ecs/macros)
   Compiling async-executor v1.8.0
error[E0432]: unresolved import `async_task::Builder`
  --> /Users/dmlary/.cargo/registry/src/index.crates.io-6f17d22bba15001f/async-executor-1.8.0/src/lib.rs:46:18
   |
46 | use async_task::{Builder, Runnable};
   |                  ^^^^^^^ no `Builder` in the root
   |
   = help: consider importing this struct instead:
           std::thread::Builder

For more information about this error, try `rustc --explain E0432`.
error: could not compile `async-executor` (lib) due to previous error
warning: build failed, waiting for other jobs to finish...
thread 'main' panicked at tools/ci/src/main.rs:88:18:
Compiler errors of the ECS compile fail tests seem to be different than expected! Check locally and compare rust versions.: command exited with non-zero code `cargo test --target-dir ../../target`: 101
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[james7132]

Has this issue been upstreamed to async_executor or async_task?

[mockersf]

I'm encountering the same problem running cargo run -p ci, but able to build/run breakout just fine. I've tried removing Cargo.lock and target/.

When running cargo run -p ci, it's running through several projects, some of which are not in the workspace so they don't share the same lock file. Those are the crates/*_compile_fail_tests crates, and you'll need to remove their individual lock files

[james7132]

Closing this out as this seems like it was a transient issue that was resolvable by just running cargo update in the appropriate places and not something that was actually an issue with Bevy or its dependency tree.