Typo'd Imports Result in Confusing Error Message #76208
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A-diagnostics
Area: Messages for errors, warnings, and lints
A-resolve
Area: Path resolution
C-enhancement
Category: An issue proposing an enhancement or a PR with one.
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
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jonas-schievink
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A-diagnostics
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This is one of few cases for which typo suggestions are not yet implemented (#30197 (comment)). |
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the8472
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Oct 13, 2021
…ebank suggestion for typoed crate or module Previously, the compiler didn't suggest similarly named crates or modules. This pull request adds a suggestion for typoed crates or modules. rust-lang#76208 before: ``` error[E0433]: failed to resolve: use of undeclared type or module `chono` --> src/main.rs:2:5 | 2 | use chono::prelude::*; | ^^^^^ use of undeclared type or module `chono` ``` after: ``` error[E0433]: failed to resolve: use of undeclared type or module `chono` --> src/main.rs:2:5 | 2 | use chono::prelude::*; | ^^^^^ | | | use of undeclared crate or module `chono` | help: a similar crate or module exists: `chrono` ```
matthiaskrgr
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Oct 13, 2021
…ebank suggestion for typoed crate or module Previously, the compiler didn't suggest similarly named crates or modules. This pull request adds a suggestion for typoed crates or modules. rust-lang#76208 before: ``` error[E0433]: failed to resolve: use of undeclared type or module `chono` --> src/main.rs:2:5 | 2 | use chono::prelude::*; | ^^^^^ use of undeclared type or module `chono` ``` after: ``` error[E0433]: failed to resolve: use of undeclared type or module `chono` --> src/main.rs:2:5 | 2 | use chono::prelude::*; | ^^^^^ | | | use of undeclared crate or module `chono` | help: a similar crate or module exists: `chrono` ```
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I wanted to use the chrono crate, so I added it to Cargo.toml and put an import at the top of main.rs:
use chono::prelude::*, where I typo`d chrono as chono. I got this error message:I didn't see the typo, and I was confused because I thought I must have put the import in the wrong place, because it said I hadn't declared the module that I was declaring on that line. I checked the docs for E0433, and in the example given someone had forgotten to import the module at all, so I was surprised to see that error on an import line.
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