Attempt was made to import an item whereas an extern crate with this name has already been imported.
Erroneous code example:
extern crate core;
mod foo {
pub trait core {
fn do_something();
}
}
use foo::core; // error: an extern crate named `core` has already
// been imported in this module
fn main() {}To fix this issue, you have to rename at least one of the two imports. Example:
extern crate core as libcore; // ok!
mod foo {
pub trait core {
fn do_something();
}
}
use foo::core;
fn main() {}