sui 合约编译警告

[v1xingyue]

写了一个简单的sui 合约，build 有警告信息.

// Copyright (c) Mysten Labs, Inc.
// SPDX-License-Identifier: Apache-2.0

/// Example of objects that can be combined to create
/// new objects
module my_first_package::BasicUse {

    // Part 1: imports
    use sui::object::{Self, UID};
    use sui::tx_context::{Self,TxContext};

    // Part 2: struct definitions
    struct BasicObject has key, store {
        id: UID,
        value: u64
    }

    public entry fun create_object(v: u64, recipient: address, ctx: &mut TxContext) {
        use sui::transfer;
        // create a sword
        let sword = BasicObject {
            id: object::new(ctx),
            value: v
        };
        // transfer the sword
        transfer::transfer(sword, recipient);
    }


}

警告信息如下:

怎么解决 以及为什么？

[xiegudong45]

试试删掉tx_context::后面的Self？大概是因为你没有在下面的方法里使用tx_context导致的