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> A good example of a cryptic rust error is the `expected type Foo, but found type Foo` error message which is very inscrutable, especially to a new users. Doe
by kaashif 5y ago
> A good example of a cryptic rust error is the `expected type Foo, but found type Foo` error message which is very inscrutable, especially to a new users.
Does Rust actually give an error like `expected type Foo, but found type Foo`, as in both types are the same in the error? I don't think I've seen that before, but I don't write much Rust.
If both types are the same, what does the error mean?
- masonium 5y agoI've seen this error a lot when working with two different versions of the same library. Specifically, you can directly include version A, but a different library depends on a version B, with some of that exposed in the public API.
- staticassertion 5y agoI think the compiler will now give you a hint that they may be from different versions. If not, next time you see it you should open up a bug in rustc. To anyone who gets a cryptic error message - that's a bug, report it.
- eminence32 5y agoYup, newer compilers will give you an explicit hint about thee types from being different versions of different crates, but older compilers did not.