Unable to import ursa library

[arunprakashpj]

I am trying to execute Hyperledger Ursa(https://github.com/hyperledger/ursa) as described in https://crates.io/crates/ursa. That is , I have added the ursa as dependency in Cargo.toml. Then i just imported it as below

extern crate ferris_says; extern crate ursa;

use ferris_says::say; use std::io::{ stdout, BufWriter }; use ursa::bls::*;

fn main() { let out = b"Hello fellow Rustaceans!"; let width = 24;

let mut writer = BufWriter::new(stdout()); say(out, width, &mut writer).unwrap(); }

But the system is throwing err as , the ursa cannot be compiled. If ferris_says can work properly, why not ursa ?

[mikelodder7]

What version of Rust are you using? Make sure you are on the latest version.

[mikelodder7]

Try running rustup update to 1.47.0

[arunprakashpj]

Try running rustup update to 1.47.0

Thanks @mikelodder7 ! Perfect !