src/librustc_error_codes/error_codes/E0432.md

   1 An import was unresolved.
   2
   3 Erroneous code example:
   4
   5 ```compile_fail,E0432
   6 use something::Foo; // error: unresolved import `something::Foo`.
   7 ```
   8
   9 Paths in `use` statements are relative to the crate root. To import items
  10 relative to the current and parent modules, use the `self::` and `super::`
  11 prefixes, respectively. Also verify that you didn't misspell the import
  12 name and that the import exists in the module from where you tried to
  13 import it. Example:
  14
  15 ```
  16 use self::something::Foo; // ok!
  17
  18 mod something {
  19     pub struct Foo;
  20 }
  21 # fn main() {}
  22 ```
  23
  24 Or, if you tried to use a module from an external crate, you may have missed
  25 the `extern crate` declaration (which is usually placed in the crate root):
  26
  27 ```
  28 extern crate core; // Required to use the `core` crate
  29
  30 use core::any;
  31 # fn main() {}
  32 ```