A private item was used outside its scope.
Erroneous code example:
mod SomeModule { const PRIVATE: u32 = 0x_a_bad_1dea_u32; // This const is private, so we // can't use it outside of the // `SomeModule` module. } println!("const value: {}", SomeModule::PRIVATE); // error: constant `PRIVATE` // is private
In order to fix this error, you need to make the item public by using the pub
keyword. Example:
mod SomeModule { pub const PRIVATE: u32 = 0x_a_bad_1dea_u32; // We set it public by using the // `pub` keyword. } println!("const value: {}", SomeModule::PRIVATE); // ok!