Lesson

Lesson 2

Could you please leave a link to the timestamp in the video where this error occurs? (You can right click a video and "copy video URL at current time")

No response

Operating System

Windows

Describe the bug

Below is my code:

// SPDX-License-identifier; MIT
pragma solidity 0.8.18; // The solidity version we are using
contract SimpleStorage {
}

Then I have this warning message:

from solidity:
Warning: SPDX license identifier not provided in source file. Before publishing, consider adding a comment containing "SPDX-License-Identifier: " to each source file. Use "SPDX-License-Identifier: UNLICENSED" for non-open-source code. Please see https://spdx.org for more information.
--> SimpleStorage.sol

Pls how can i fix this warning?