Rust errors / Build and Cargo
Rust build error · checked with Rust 1.99.0
rust-analyzer failed to load workspace
rust-analyzer failed to load workspace
What it meansrust-analyzer could not run cargo metadata for your folder: no Cargo.toml at the root it opened, a broken Cargo.toml, or a toolchain problem.
Why it happens
- The editor opened a parent folder with no Cargo.toml.
- A syntax error in Cargo.toml.
- rust-src component missing for the active toolchain.
How to fix it
1. Check cargo works in that folder
cargo metadata --format-version 1 > /dev/null2. Point rust-analyzer at the project
VS Code settings.json, when the Cargo.toml is in a subfolder.
"rust-analyzer.linkedProjects": ["./server/Cargo.toml"]3. Install rust-src
rustup component add rust-srcOther wordings of this error
rust-analyzer failed to load workspace, failed to discover workspace, rust-analyzer failed to discover workspace
Other build errors
- error: linker `link.exe` not found
- error: linker `cc` not found
- error: failed to run custom build command for `openssl-sys`
- error: failed to select a version for the requirement
- error: failed to select a version for `libsqlite3-sys`... the package `libsqlite3-sys` lin
- error: could not compile `my-crate` (bin "my-crate") due to 1 previous error
- error: package `foo v1.2.3` cannot be built because it requires rustc 1.80 or newer, while
- feature `edition2024` is required
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